Cleanup: GPUState: Replace blend func separate by enum

39 files changed, 80 insertions, 183 deletions

diff --git a/source/blender/blenfont/intern/blf_font.c b/source/blender/blenfont/intern/blf_font.c
index 76829db755c..2a6bc41704b 100644
--- a/source/blender/blenfont/intern/blf_font.c
+++ b/source/blender/blenfont/intern/blf_font.c
@@ -222,8 +222,7 @@ void blf_batch_draw(void)
   }
 
   GPU_blend(true);
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
 #ifndef BLF_STANDALONE
   /* We need to flush widget base first to ensure correct ordering. */
diff --git a/source/blender/draw/intern/draw_manager.c b/source/blender/draw/intern/draw_manager.c
index 4aa12ff2d23..664d514a77e 100644
--- a/source/blender/draw/intern/draw_manager.c
+++ b/source/blender/draw/intern/draw_manager.c
@@ -1606,8 +1606,7 @@ void DRW_draw_render_loop_offscreen(struct Depsgraph *depsgraph,
 
   if (draw_background) {
     /* Reset default. */
-    GPU_blend_set_func_separate(
-        GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+    GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
     GPU_blend(false);
   }
 
diff --git a/source/blender/editors/animation/anim_channels_defines.c b/source/blender/editors/animation/anim_channels_defines.c
index 53401e0c05a..aa5dffffe36 100644
--- a/source/blender/editors/animation/anim_channels_defines.c
+++ b/source/blender/editors/animation/anim_channels_defines.c
@@ -4386,8 +4386,7 @@ void ANIM_channel_draw(
   }
 
   /* set blending again, as may not be set in previous step */
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
   GPU_blend(true);
 
   /* step 1) draw backdrop ...........................................  */
diff --git a/source/blender/editors/animation/anim_draw.c b/source/blender/editors/animation/anim_draw.c
index b2f687b49af..16c6638b6d9 100644
--- a/source/blender/editors/animation/anim_draw.c
+++ b/source/blender/editors/animation/anim_draw.c
@@ -98,8 +98,7 @@ void ANIM_draw_previewrange(const bContext *C, View2D *v2d, int end_frame_width)
 
   /* only draw this if preview range is set */
   if (PRVRANGEON) {
-    GPU_blend_set_func_separate(
-        GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+    GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
     GPU_blend(true);
 
     GPUVertFormat *format = immVertexFormat();
@@ -133,8 +132,7 @@ void ANIM_draw_previewrange(const bContext *C, View2D *v2d, int end_frame_width)
 void ANIM_draw_framerange(Scene *scene, View2D *v2d)
 {
   /* draw darkened area outside of active timeline frame range */
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
   GPU_blend(true);
 
   GPUVertFormat *format = immVertexFormat();
diff --git a/source/blender/editors/animation/anim_markers.c b/source/blender/editors/animation/anim_markers.c
index bcdbf4c74f0..4e4e6b38342 100644
--- a/source/blender/editors/animation/anim_markers.c
+++ b/source/blender/editors/animation/anim_markers.c
@@ -500,8 +500,7 @@ static void draw_marker(
   marker_color_get(marker, text_color, line_color);
 
   GPU_blend(true);
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   draw_marker_line(line_color, xpos, UI_DPI_FAC * 20, region_height);
 
@@ -530,8 +529,7 @@ static void draw_markers_background(rctf *rect)
   immUniformColor4ubv(shade);
 
   GPU_blend(true);
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   immRectf(pos, rect->xmin, rect->ymin, rect->xmax, rect->ymax);
 
diff --git a/source/blender/editors/animation/time_scrub_ui.c b/source/blender/editors/animation/time_scrub_ui.c
index edc36326c57..8c2c01c60de 100644
--- a/source/blender/editors/animation/time_scrub_ui.c
+++ b/source/blender/editors/animation/time_scrub_ui.c
@@ -67,8 +67,7 @@ static void draw_background(const rcti *rect)
   immUniformThemeColor(TH_TIME_SCRUB_BACKGROUND);
 
   GPU_blend(true);
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   immRectf(pos, rect->xmin, rect->ymin, rect->xmax, rect->ymax);
 
diff --git a/source/blender/editors/gpencil/annotate_draw.c b/source/blender/editors/gpencil/annotate_draw.c
index df479325027..e0e8f72fd16 100644
--- a/source/blender/editors/gpencil/annotate_draw.c
+++ b/source/blender/editors/gpencil/annotate_draw.c
@@ -734,8 +734,7 @@ static void annotation_draw_data(
   GPU_line_smooth(true);
 
   /* turn on alpha-blending */
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
   GPU_blend(true);
 
   /* Do not write to depth (avoid self-occlusion). */
diff --git a/source/blender/editors/gpencil/annotate_paint.c b/source/blender/editors/gpencil/annotate_paint.c
index 30e4fe0b531..52c6dcc5f77 100644
--- a/source/blender/editors/gpencil/annotate_paint.c
+++ b/source/blender/editors/gpencil/annotate_paint.c
@@ -1701,8 +1701,7 @@ static void annotation_draw_eraser(bContext *UNUSED(C), int x, int y, void *p_pt
 
     GPU_line_smooth(true);
     GPU_blend(true);
-    GPU_blend_set_func_separate(
-        GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+    GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
     immUniformColor4ub(255, 100, 100, 20);
     imm_draw_circle_fill_2d(shdr_pos, x, y, p->radius, 40);
diff --git a/source/blender/editors/gpencil/gpencil_paint.c b/source/blender/editors/gpencil/gpencil_paint.c
index 680e7b37d31..81999bc7721 100644
--- a/source/blender/editors/gpencil/gpencil_paint.c
+++ b/source/blender/editors/gpencil/gpencil_paint.c
@@ -2269,8 +2269,7 @@ static void gpencil_draw_eraser(bContext *UNUSED(C), int x, int y, void *p_ptr)
 
     GPU_line_smooth(true);
     GPU_blend(true);
-    GPU_blend_set_func_separate(
-        GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+    GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
     immUniformColor4ub(255, 100, 100, 20);
     imm_draw_circle_fill_2d(shdr_pos, x, y, p->radius, 40);
diff --git a/source/blender/editors/gpencil/gpencil_utils.c b/source/blender/editors/gpencil/gpencil_utils.c
index 5aae10a5db5..aa3b6991a82 100644
--- a/source/blender/editors/gpencil/gpencil_utils.c
+++ b/source/blender/editors/gpencil/gpencil_utils.c
@@ -1761,8 +1761,7 @@ void ED_gpencil_brush_draw_eraser(Brush *brush, int x, int y)
 
   GPU_line_smooth(true);
   GPU_blend(true);
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   immUniformColor4ub(255, 100, 100, 20);
   imm_draw_circle_fill_2d(shdr_pos, x, y, radius, 40);
diff --git a/source/blender/editors/interface/interface.c b/source/blender/editors/interface/interface.c
index 478ef216421..fc4bf1b5636 100644
--- a/source/blender/editors/interface/interface.c
+++ b/source/blender/editors/interface/interface.c
@@ -1891,8 +1891,7 @@ void UI_block_draw(const bContext *C, uiBlock *block)
   }
 
   /* we set this only once */
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   /* scale fonts */
   ui_fontscale(&style.paneltitle.points, block->aspect);
diff --git a/source/blender/editors/interface/interface_draw.c b/source/blender/editors/interface/interface_draw.c
index 0a40c39851a..4cb2b16910e 100644
--- a/source/blender/editors/interface/interface_draw.c
+++ b/source/blender/editors/interface/interface_draw.c
@@ -754,7 +754,7 @@ void ui_draw_but_IMAGE(ARegion *UNUSED(region),
 
   GPU_blend(true);
   /* Combine with premultiplied alpha. */
-  GPU_blend_set_func_separate(GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA_PREMULT);
 
   if (w != ibuf->x || h != ibuf->y) {
     /* We scale the bitmap, rather than have OGL do a worse job. */
@@ -782,8 +782,7 @@ void ui_draw_but_IMAGE(ARegion *UNUSED(region),
 
   GPU_blend(false);
   /* Reset default. */
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
 #  if 0
   // restore scissortest
@@ -832,8 +831,7 @@ void UI_draw_safe_areas(uint pos,
 
 static void draw_scope_end(const rctf *rect)
 {
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   /* outline */
   UI_draw_roundbox_corner_set(UI_CNR_ALL);
@@ -863,7 +861,7 @@ static void histogram_draw_one(float r,
   }
 
   GPU_line_smooth(true);
-  GPU_blend_set_func_separate(GPU_SRC_ALPHA, GPU_ONE, GPU_ONE, GPU_ONE);
+  GPU_blend_set_func_separate(GPU_BLEND_ADDITIVE);
 
   immUniformColor4fv(color);
 
@@ -893,8 +891,7 @@ static void histogram_draw_one(float r,
     /* curve outline */
     immUniformColor4f(0.0f, 0.0f, 0.0f, 0.25f);
 
-    GPU_blend_set_func_separate(
-        GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+    GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
     immBegin(GPU_PRIM_LINE_STRIP, res);
     for (int i = 0; i < res; i++) {
       float x2 = x + i * (w / (float)res);
@@ -928,8 +925,7 @@ void ui_draw_but_HISTOGRAM(ARegion *UNUSED(region),
   float h = BLI_rctf_size_y(&rect) * hist->ymax;
 
   GPU_blend(true);
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   float color[4];
   UI_GetThemeColor4fv(TH_PREVIEW_BACK, color);
@@ -1072,8 +1068,7 @@ void ui_draw_but_WAVEFORM(ARegion *UNUSED(region),
   BLF_batch_draw_flush();
 
   GPU_blend(true);
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   float color[4];
   UI_GetThemeColor4fv(TH_PREVIEW_BACK, color);
@@ -1101,8 +1096,7 @@ void ui_draw_but_WAVEFORM(ARegion *UNUSED(region),
   BLF_batch_draw_flush();
 
   GPU_blend(true);
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   GPUVertFormat *format = immVertexFormat();
   uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
@@ -1405,8 +1399,7 @@ void ui_draw_but_VECTORSCOPE(ARegion *UNUSED(region),
   float alpha = scopes->vecscope_alpha * scopes->vecscope_alpha * scopes->vecscope_alpha;
 
   GPU_blend(true);
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   float color[4];
   UI_GetThemeColor4fv(TH_PREVIEW_BACK, color);
@@ -1963,8 +1956,7 @@ void ui_draw_but_CURVE(ARegion *region, uiBut *but, const uiWidgetColors *wcol,
   if (but->a1 == UI_GRAD_H) {
     /* grid, hsv uses different grid */
     GPU_blend(true);
-    GPU_blend_set_func_separate(
-        GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+    GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
     ARRAY_SET_ITEMS(color_backdrop, 0, 0, 0, 48.0 / 255.0);
     immUniformColor4fv(color_backdrop);
     ui_draw_but_curve_grid(pos, rect, zoomx, zoomy, offsx, offsy, 0.1666666f);
@@ -2468,8 +2460,7 @@ void ui_draw_but_TRACKPREVIEW(ARegion *UNUSED(region),
   int height = BLI_rctf_size_y(&rect);
 
   GPU_blend(true);
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   /* need scissor test, preview image can draw outside of boundary */
   int scissor[4];
diff --git a/source/blender/editors/interface/interface_icons.c b/source/blender/editors/interface/interface_icons.c
index a7b7bad2fe6..2dc4081a4c6 100644
--- a/source/blender/editors/interface/interface_icons.c
+++ b/source/blender/editors/interface/interface_icons.c
@@ -1605,8 +1605,7 @@ static void icon_draw_cache_flush_ex(bool only_full_caches)
       icon_draw_cache_texture_flush_ex(icongltex.tex[1], &g_icon_draw_cache.border);
     }
 
-    GPU_blend_set_func_separate(
-        GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+    GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
   }
 }
 
@@ -1726,8 +1725,7 @@ static void icon_draw_texture(float x,
 
   GPU_texture_unbind(texture);
 
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 }
 
 /* Drawing size for preview images */
@@ -1815,11 +1813,9 @@ static void icon_draw_size(float x,
       di->data.geom.inverted = invert;
     }
 
-    GPU_blend_set_func_separate(
-        GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+    GPU_blend_set_func_separate(GPU_BLEND_ALPHA_PREMULT);
     icon_draw_rect(x, y, w, h, aspect, w, h, ibuf->rect, alpha, desaturate);
-    GPU_blend_set_func_separate(
-        GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+    GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
   }
   else if (di->type == ICON_TYPE_EVENT) {
     const short event_type = di->data.input.event_type;
@@ -1900,12 +1896,10 @@ static void icon_draw_size(float x,
       }
 
       /* Preview images use premultiplied alpha. */
-      GPU_blend_set_func_separate(
-          GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+      GPU_blend_set_func_separate(GPU_BLEND_ALPHA_PREMULT);
       icon_draw_rect(
           x, y, w, h, aspect, pi->w[size], pi->h[size], pi->rect[size], alpha, desaturate);
-      GPU_blend_set_func_separate(
-          GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+      GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
     }
   }
   else if (di->type == ICON_TYPE_GPLAYER) {
diff --git a/source/blender/editors/interface/interface_widgets.c b/source/blender/editors/interface/interface_widgets.c
index 01e03a2a83b..54838dcbdbb 100644
--- a/source/blender/editors/interface/interface_widgets.c
+++ b/source/blender/editors/interface/interface_widgets.c
@@ -2784,8 +2784,7 @@ static void widget_menu_back(uiWidgetColors *wcol, rcti *rect, int flag, int dir
     rect->ymax += 0.1f * U.widget_unit;
   }
 
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
   GPU_blend(true);
   widget_softshadow(rect, roundboxalign, wcol->roundness * U.widget_unit);
 
@@ -5165,8 +5164,7 @@ static void ui_draw_widget_back_color(uiWidgetTypeEnum type,
 
   if (use_shadow) {
     GPU_blend(true);
-    GPU_blend_set_func_separate(
-        GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+    GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
     widget_softshadow(rect, UI_CNR_ALL, 0.25f * U.widget_unit);
     GPU_blend(false);
   }
diff --git a/source/blender/editors/mask/mask_draw.c b/source/blender/editors/mask/mask_draw.c
index c617c921d70..f39ca028e7a 100644
--- a/source/blender/editors/mask/mask_draw.c
+++ b/source/blender/editors/mask/mask_draw.c
@@ -595,8 +595,7 @@ static void draw_mask_layers(const bContext *C,
                              const int height)
 {
   GPU_blend(true);
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
   GPU_program_point_size(true);
 
   MaskLayer *mask_layer;
diff --git a/source/blender/editors/mesh/editmesh_knife.c b/source/blender/editors/mesh/editmesh_knife.c
index b02e48a652e..684350a15a6 100644
--- a/source/blender/editors/mesh/editmesh_knife.c
+++ b/source/blender/editors/mesh/editmesh_knife.c
@@ -1129,8 +1129,7 @@ static void knifetool_draw(const bContext *UNUSED(C), ARegion *UNUSED(region), v
     float fcol[4];
 
     GPU_blend(true);
-    GPU_blend_set_func_separate(
-        GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+    GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
     GPUVertBuf *vert = GPU_vertbuf_create_with_format(format);
     GPU_vertbuf_data_alloc(vert, kcd->totlinehit);
diff --git a/source/blender/editors/screen/area.c b/source/blender/editors/screen/area.c
index 68d39246e5f..33632bbb0c3 100644
--- a/source/blender/editors/screen/area.c
+++ b/source/blender/editors/screen/area.c
@@ -94,8 +94,7 @@ static void region_draw_emboss(const ARegion *region, const rcti *scirct, int si
 
   /* set transp line */
   GPU_blend(true);
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   float color[4] = {0.0f, 0.0f, 0.0f, 0.25f};
   UI_GetThemeColor3fv(TH_EDITOR_OUTLINE, color);
@@ -312,8 +311,7 @@ static void region_draw_azones(ScrArea *area, ARegion *region)
 
   GPU_line_width(1.0f);
   GPU_blend(true);
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   GPU_matrix_push();
   GPU_matrix_translate_2f(-region->winrct.xmin, -region->winrct.ymin);
@@ -377,8 +375,7 @@ static void region_draw_status_text(ScrArea *area, ARegion *region)
     const float y1 = pad;
     const float y2 = region->winy - pad;
 
-    GPU_blend_set_func_separate(
-        GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+    GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
     float color[4] = {0.0f, 0.0f, 0.0f, 0.5f};
     UI_GetThemeColor3fv(TH_BACK, color);
@@ -3273,8 +3270,7 @@ void ED_region_info_draw_multiline(ARegion *region,
   GPU_scissor(rect.xmin, rect.ymin, BLI_rcti_size_x(&rect) + 1, BLI_rcti_size_y(&rect) + 1);
 
   GPU_blend(true);
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
   GPUVertFormat *format = immVertexFormat();
   uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_I32, 2, GPU_FETCH_INT_TO_FLOAT);
   immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
diff --git a/source/blender/editors/screen/screen_draw.c b/source/blender/editors/screen/screen_draw.c
index b0e96c2dae1..129c8015c01 100644
--- a/source/blender/editors/screen/screen_draw.c
+++ b/source/blender/editors/screen/screen_draw.c
@@ -296,8 +296,7 @@ static GPUBatch *batch_screen_edges_get(int *corner_len)
  */
 static void scrarea_draw_shape_dark(ScrArea *area, char dir, uint pos)
 {
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
   immUniformColor4ub(0, 0, 0, 50);
 
   draw_join_shape(area, dir, pos);
@@ -308,8 +307,7 @@ static void scrarea_draw_shape_dark(ScrArea *area, char dir, uint pos)
  */
 static void scrarea_draw_shape_light(ScrArea *area, char UNUSED(dir), uint pos)
 {
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
   immUniformColor4ub(255, 255, 255, 25);
 
   immRectf(pos, area->v1->vec.x, area->v1->vec.y, area->v3->vec.x, area->v3->vec.y);
@@ -413,8 +411,7 @@ void ED_screen_draw_edges(wmWindow *win)
   edge_thickness = corner_scale * 0.21f;
 
   GPU_blend(true);
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   GPUBatch *batch = batch_screen_edges_get(&verts_per_corner);
   GPU_batch_program_set_builtin(batch, GPU_SHADER_2D_AREA_EDGES);
@@ -487,8 +484,7 @@ void ED_screen_draw_split_preview(ScrArea *area, const int dir, const float fac)
 
   /* splitpoint */
   GPU_blend(true);
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   immUniformColor4ub(255, 255, 255, 100);
 
diff --git a/source/blender/editors/space_clip/clip_draw.c b/source/blender/editors/space_clip/clip_draw.c
index 07bdd337269..d17041737e4 100644
--- a/source/blender/editors/space_clip/clip_draw.c
+++ b/source/blender/editors/space_clip/clip_draw.c
@@ -154,8 +154,7 @@ static void draw_movieclip_cache(SpaceClip *sc, ARegion *region, MovieClip *clip
   MovieTrackingReconstruction *reconstruction = BKE_tracking_get_active_reconstruction(tracking);
 
   GPU_blend(true);
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   /* cache background */
   ED_region_cache_draw_background(region);
@@ -331,8 +330,7 @@ static void draw_movieclip_buffer(const bContext *C,
   /* checkerboard for case alpha */
   if (ibuf->planes == 32) {
     GPU_blend(true);
-    GPU_blend_set_func_separate(
-        GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+    GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
     imm_draw_box_checker_2d(x, y, x + zoomx * ibuf->x, y + zoomy * ibuf->y);
   }
@@ -1213,8 +1211,7 @@ static void draw_plane_marker_image(Scene *scene,
       if (plane_track->image_opacity != 1.0f || ibuf->planes == 32) {
         transparent = true;
         GPU_blend(true);
-        GPU_blend_set_func_separate(
-            GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+        GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
       }
 
       GPUTexture *texture = GPU_texture_create_nD(ibuf->x,
diff --git a/source/blender/editors/space_clip/clip_utils.c b/source/blender/editors/space_clip/clip_utils.c
index 03f791ad70d..8e50c3f6774 100644
--- a/source/blender/editors/space_clip/clip_utils.c
+++ b/source/blender/editors/space_clip/clip_utils.c
@@ -415,8 +415,7 @@ void clip_draw_sfra_efra(View2D *v2d, Scene *scene)
   UI_view2d_view_ortho(v2d);
 
   /* currently clip editor supposes that editing clip length is equal to scene frame range */
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
   GPU_blend(true);
 
   uint pos = GPU_vertformat_attr_add(immVertexFormat(), "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
diff --git a/source/blender/editors/space_file/file_draw.c b/source/blender/editors/space_file/file_draw.c
index 083d41747b3..88fd505d26d 100644
--- a/source/blender/editors/space_file/file_draw.c
+++ b/source/blender/editors/space_file/file_draw.c
@@ -290,8 +290,7 @@ static void file_draw_preview(uiBlock *block,
 
   if (!is_icon && typeflags & FILE_TYPE_BLENDERLIB) {
     /* Datablock preview images use premultiplied alpha. */
-    GPU_blend_set_func_separate(
-        GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+    GPU_blend_set_func_separate(GPU_BLEND_ALPHA_PREMULT);
   }
 
   IMMDrawPixelsTexState state = immDrawPixelsTexSetup(GPU_SHADER_2D_IMAGE_COLOR);
@@ -309,8 +308,7 @@ static void file_draw_preview(uiBlock *block,
                          1.0f,
                          col);
 
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   if (icon && is_icon) {
     /* Small icon in the middle of large image, scaled to fit container and UI scale */
diff --git a/source/blender/editors/space_graph/graph_draw.c b/source/blender/editors/space_graph/graph_draw.c
index f5861e792bc..677707602b2 100644
--- a/source/blender/editors/space_graph/graph_draw.c
+++ b/source/blender/editors/space_graph/graph_draw.c
@@ -1262,8 +1262,7 @@ void graph_draw_channel_names(bContext *C, bAnimContext *ac, ARegion *region)
     float ymax = ACHANNEL_FIRST_TOP(ac);
 
     /* set blending again, as may not be set in previous step */
-    GPU_blend_set_func_separate(
-        GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+    GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
     GPU_blend(true);
 
     for (ale = anim_data.first; ale; ale = ale->next, ymax -= ACHANNEL_STEP(ac), channel_index++) {
diff --git a/source/blender/editors/space_image/image_draw.c b/source/blender/editors/space_image/image_draw.c
index f70589ac5f1..7e6f92f37f1 100644
--- a/source/blender/editors/space_image/image_draw.c
+++ b/source/blender/editors/space_image/image_draw.c
@@ -175,8 +175,7 @@ void ED_image_draw_info(Scene *scene,
   float hue = 0, sat = 0, val = 0, lum = 0, u = 0, v = 0;
   float col[4], finalcol[4];
 
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
   GPU_blend(true);
 
   uint pos = GPU_vertformat_attr_add(
@@ -540,8 +539,7 @@ static void draw_udim_label(ARegion *region, float fx, float fy, const char *lab
   int x, y;
   UI_view2d_view_to_region(&region->v2d, fx, fy, &x, &y);
 
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
   GPU_blend(true);
 
   int textwidth = BLF_width(blf_mono_font, label, strlen(label)) + 10;
@@ -603,8 +601,7 @@ static void draw_image_buffer(const bContext *C,
       imm_draw_box_checker_2d(x, y, x + ibuf->x * zoomx, y + ibuf->y * zoomy);
 
       GPU_blend(true);
-      GPU_blend_set_func_separate(
-          GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+      GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
     }
 
     /* If RGBA display with color management */
@@ -772,8 +769,7 @@ static void draw_image_paint_helpers(
       }
 
       GPU_blend(true);
-      GPU_blend_set_func_separate(
-          GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+      GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
       IMMDrawPixelsTexState state = immDrawPixelsTexSetup(GPU_SHADER_2D_IMAGE_COLOR);
       immDrawPixelsTex(
@@ -1059,8 +1055,7 @@ void draw_image_cache(const bContext *C, ARegion *region)
   const int region_bottom = rect_visible->ymin;
 
   GPU_blend(true);
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   /* Draw cache background. */
   ED_region_cache_draw_background(region);
diff --git a/source/blender/editors/space_info/textview.c b/source/blender/editors/space_info/textview.c
index 93a79d9a2bc..b55c83fed9c 100644
--- a/source/blender/editors/space_info/textview.c
+++ b/source/blender/editors/space_info/textview.c
@@ -85,8 +85,7 @@ static void textview_draw_sel(const char *str,
     const int end = BLI_str_utf8_offset_to_column(str, min_ii(sel[1], str_len_draw));
 
     GPU_blend(true);
-    GPU_blend_set_func_separate(
-        GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+    GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
     GPUVertFormat *format = immVertexFormat();
     uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_I32, 2, GPU_FETCH_INT_TO_FLOAT);
diff --git a/source/blender/editors/space_nla/nla_draw.c b/source/blender/editors/space_nla/nla_draw.c
index 97939a93d01..92f29023d73 100644
--- a/source/blender/editors/space_nla/nla_draw.c
+++ b/source/blender/editors/space_nla/nla_draw.c
@@ -434,8 +434,7 @@ static void nla_draw_strip(SpaceNla *snla,
    */
   if ((strip->extendmode != NLASTRIP_EXTEND_NOTHING) && (non_solo == 0)) {
     /* enable transparency... */
-    GPU_blend_set_func_separate(
-        GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+    GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
     GPU_blend(true);
 
     switch (strip->extendmode) {
@@ -746,8 +745,7 @@ void draw_nla_main_data(bAnimContext *ac, SpaceNla *snla, ARegion *region)
           /* just draw a semi-shaded rect spanning the width of the viewable area if there's data,
            * and a second darker rect within which we draw keyframe indicator dots if there's data
            */
-          GPU_blend_set_func_separate(
-              GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+          GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
           GPU_blend(true);
 
           /* get colors for drawing */
@@ -854,8 +852,7 @@ void draw_nla_channel_list(const bContext *C, bAnimContext *ac, ARegion *region)
     float ymax = NLACHANNEL_FIRST_TOP(ac);
 
     /* set blending again, as may not be set in previous step */
-    GPU_blend_set_func_separate(
-        GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+    GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
     GPU_blend(true);
 
     /* loop through channels, and set up drawing depending on their type  */
diff --git a/source/blender/editors/space_node/drawnode.c b/source/blender/editors/space_node/drawnode.c
index 8f15cd82fe0..f41c482da76 100644
--- a/source/blender/editors/space_node/drawnode.c
+++ b/source/blender/editors/space_node/drawnode.c
@@ -3689,8 +3689,7 @@ void draw_nodespace_back_pix(const bContext *C,
       }
       else if (snode->flag & SNODE_USE_ALPHA) {
         GPU_blend(true);
-        GPU_blend_set_func_separate(
-            GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+        GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
         ED_draw_imbuf_ctx(C, ibuf, x, y, false, snode->zoom, snode->zoom);
 
diff --git a/source/blender/editors/space_node/node_draw.c b/source/blender/editors/space_node/node_draw.c
index fd18583195d..9a61d757ef5 100644
--- a/source/blender/editors/space_node/node_draw.c
+++ b/source/blender/editors/space_node/node_draw.c
@@ -911,8 +911,7 @@ static void node_draw_preview(bNodePreview *preview, rctf *prv)
 
   GPU_blend(true);
   /* premul graphics */
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   IMMDrawPixelsTexState state = immDrawPixelsTexSetup(GPU_SHADER_2D_IMAGE_COLOR);
   immDrawPixelsTex(&state,
@@ -1752,8 +1751,7 @@ void drawnodespace(const bContext *C, ARegion *region)
   ED_region_draw_cb_draw(C, region, REGION_DRAW_PRE_VIEW);
 
   /* only set once */
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   /* nodes */
   snode_set_context(C);
diff --git a/source/blender/editors/space_outliner/outliner_draw.c b/source/blender/editors/space_outliner/outliner_draw.c
index 6a91a8f7b49..ccbb191e411 100644
--- a/source/blender/editors/space_outliner/outliner_draw.c
+++ b/source/blender/editors/space_outliner/outliner_draw.c
@@ -3493,8 +3493,7 @@ static void outliner_draw_tree(bContext *C,
   const uiFontStyle *fstyle = UI_FSTYLE_WIDGET;
   int starty, startx;
 
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA); /* Only once. */
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA); /* Only once. */
 
   if (space_outliner->outlinevis == SO_DATA_API) {
     /* struct marks */
diff --git a/source/blender/editors/space_sequencer/sequencer_draw.c b/source/blender/editors/space_sequencer/sequencer_draw.c
index 908ead31724..77bc8423365 100644
--- a/source/blender/editors/space_sequencer/sequencer_draw.c
+++ b/source/blender/editors/space_sequencer/sequencer_draw.c
@@ -383,8 +383,7 @@ static void drawmeta_contents(Scene *scene, Sequence *seqm, float x1, float y1,
   }
 
   GPU_blend(true);
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   for (seq = seqbase->first; seq; seq = seq->next) {
     chan_min = min_ii(chan_min, seq->machine);
@@ -492,8 +491,7 @@ static void draw_seq_handle(View2D *v2d,
   if (!(seq->type & SEQ_TYPE_EFFECT) || BKE_sequence_effect_get_num_inputs(seq->type) == 0) {
     GPU_blend(true);
 
-    GPU_blend_set_func_separate(
-        GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+    GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
     if (seq->flag & whichsel) {
       if (seq_active) {
@@ -755,8 +753,7 @@ static void draw_sequence_extensions(Scene *scene, Sequence *seq, uint pos, floa
   y2 = seq->machine + SEQ_STRIP_OFSTOP;
 
   GPU_blend(true);
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   color3ubv_from_seq(scene, seq, col);
   if (seq->flag & SELECT) {
@@ -845,8 +842,7 @@ static void draw_seq_background(Scene *scene,
 
   if (seq->flag & SEQ_MUTE) {
     GPU_blend(true);
-    GPU_blend_set_func_separate(
-        GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+    GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
     col[3] = MUTE_ALPHA;
   }
@@ -1596,8 +1592,7 @@ static void sequencer_draw_display_buffer(const bContext *C,
 
   if (sseq->mainb == SEQ_DRAW_IMG_IMBUF && sseq->flag & SEQ_USE_ALPHA) {
     GPU_blend(true);
-    GPU_blend_set_func_separate(
-        GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+    GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
   }
 
   /* Format needs to be created prior to any immBindShader call.
diff --git a/source/blender/editors/space_text/text_draw.c b/source/blender/editors/space_text/text_draw.c
index e9ac6946032..c91595646ff 100644
--- a/source/blender/editors/space_text/text_draw.c
+++ b/source/blender/editors/space_text/text_draw.c
@@ -1353,8 +1353,7 @@ static void draw_text_decoration(SpaceText *st, ARegion *region)
       UI_GetThemeColor4fv(TH_TEXT, highlight_color);
       highlight_color[3] = 0.1f;
       immUniformColor4fv(highlight_color);
-      GPU_blend_set_func_separate(
-          GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+      GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
       GPU_blend(true);
       immRecti(pos, 0, y1, region->winx, y2);
       GPU_blend(false);
diff --git a/source/blender/editors/space_view3d/drawobject.c b/source/blender/editors/space_view3d/drawobject.c
index 1ffa653372c..c102b4ff758 100644
--- a/source/blender/editors/space_view3d/drawobject.c
+++ b/source/blender/editors/space_view3d/drawobject.c
@@ -131,8 +131,7 @@ void ED_draw_object_facemap(Depsgraph *depsgraph,
   /* Just to create the data to pass to immediate mode, grr! */
   const int *facemap_data = CustomData_get_layer(&me->pdata, CD_FACEMAP);
   if (facemap_data) {
-    GPU_blend_set_func_separate(
-        GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+    GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
     GPU_blend(true);
 
     const MVert *mvert = me->mvert;
diff --git a/source/blender/editors/space_view3d/view3d_draw.c b/source/blender/editors/space_view3d/view3d_draw.c
index ac70547c293..6fecf80650d 100644
--- a/source/blender/editors/space_view3d/view3d_draw.c
+++ b/source/blender/editors/space_view3d/view3d_draw.c
@@ -588,8 +588,7 @@ static void drawviewborder(Scene *scene, Depsgraph *depsgraph, ARegion *region,
       float alpha = 1.0f;
 
       if (ca->passepartalpha != 1.0f) {
-        GPU_blend_set_func_separate(
-            GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+        GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
         GPU_blend(true);
         alpha = ca->passepartalpha;
       }
@@ -1028,8 +1027,7 @@ static void draw_view_axis(RegionView3D *rv3d, const rcti *rect)
   GPU_line_width(2.0f);
   GPU_line_smooth(true);
   GPU_blend(true);
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   GPUVertFormat *format = immVertexFormat();
   uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
@@ -1073,8 +1071,7 @@ static void draw_rotation_guide(const RegionView3D *rv3d)
   negate_v3_v3(o, rv3d->ofs);
 
   GPU_blend(true);
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
   GPU_depth_mask(false); /* don't overwrite zbuf */
 
   GPUVertFormat *format = immVertexFormat();
diff --git a/source/blender/editors/transform/transform.c b/source/blender/editors/transform/transform.c
index 76cce5e725f..f760e90c68f 100644
--- a/source/blender/editors/transform/transform.c
+++ b/source/blender/editors/transform/transform.c
@@ -1544,8 +1544,7 @@ static void drawAutoKeyWarning(TransInfo *UNUSED(t), ARegion *region)
 #endif
 
   /* autokey recording icon... */
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
   GPU_blend(true);
 
   xco -= U.widget_unit;
diff --git a/source/blender/editors/transform/transform_mode_edge_slide.c b/source/blender/editors/transform/transform_mode_edge_slide.c
index 1886f95beae..deed5c84d2b 100644
--- a/source/blender/editors/transform/transform_mode_edge_slide.c
+++ b/source/blender/editors/transform/transform_mode_edge_slide.c
@@ -1150,8 +1150,7 @@ void drawEdgeSlide(TransInfo *t)
   GPU_depth_test(false);
 
   GPU_blend(true);
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   GPU_matrix_push();
   GPU_matrix_mul(TRANS_DATA_CONTAINER_FIRST_OK(t)->obedit->obmat);
diff --git a/source/blender/editors/transform/transform_mode_vert_slide.c b/source/blender/editors/transform/transform_mode_vert_slide.c
index 38537194af3..9691da6a32f 100644
--- a/source/blender/editors/transform/transform_mode_vert_slide.c
+++ b/source/blender/editors/transform/transform_mode_vert_slide.c
@@ -393,8 +393,7 @@ void drawVertSlide(TransInfo *t)
       GPU_depth_test(false);
 
       GPU_blend(true);
-      GPU_blend_set_func_separate(
-          GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+      GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
       GPU_matrix_push();
       GPU_matrix_mul(TRANS_DATA_CONTAINER_FIRST_OK(t)->obedit->obmat);
diff --git a/source/blender/editors/uvedit/uvedit_draw.c b/source/blender/editors/uvedit/uvedit_draw.c
index f26e95d8861..03ec8c81294 100644
--- a/source/blender/editors/uvedit/uvedit_draw.c
+++ b/source/blender/editors/uvedit/uvedit_draw.c
@@ -349,8 +349,7 @@ static void draw_uvs(SpaceImage *sima,
     interpedges = (ts->uv_selectmode == UV_SELECT_VERTEX);
   }
 
-  GPU_blend_set_func_separate(
-      GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+  GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
   if (batch->faces) {
     GPU_batch_program_set_builtin(batch->faces,
diff --git a/source/blender/gpu/GPU_state.h b/source/blender/gpu/GPU_state.h
index 19bb8001491..cb580adf23a 100644
--- a/source/blender/gpu/GPU_state.h
+++ b/source/blender/gpu/GPU_state.h
@@ -116,10 +116,7 @@ void GPU_state_init(void);
 
 void GPU_blend(bool enable);
 void GPU_blend_set_func(eGPUBlendFunction sfactor, eGPUBlendFunction dfactor);
-void GPU_blend_set_func_separate(eGPUBlendFunction src_rgb,
-                                 eGPUBlendFunction dst_rgb,
-                                 eGPUBlendFunction src_alpha,
-                                 eGPUBlendFunction dst_alpha);
+void GPU_blend_set_func_separate(eGPUBlend blend);
 void GPU_face_culling(eGPUFaceCullTest culling);
 void GPU_front_facing(bool invert);
 void GPU_provoking_vertex(eGPUProvokingVertex vert);
diff --git a/source/blender/gpu/intern/gpu_state.cc b/source/blender/gpu/intern/gpu_state.cc
index d2aa0816a3f..be4450193f5 100644
--- a/source/blender/gpu/intern/gpu_state.cc
+++ b/source/blender/gpu/intern/gpu_state.cc
@@ -46,25 +46,6 @@ using namespace blender::gpu;
 //   GLStateStack::set_blend(blend);
 // }
 
-static GLenum gpu_get_gl_blendfunction(eGPUBlendFunction blend)
-{
-  switch (blend) {
-    case GPU_ONE:
-      return GL_ONE;
-    case GPU_SRC_ALPHA:
-      return GL_SRC_ALPHA;
-    case GPU_ONE_MINUS_SRC_ALPHA:
-      return GL_ONE_MINUS_SRC_ALPHA;
-    case GPU_DST_COLOR:
-      return GL_DST_COLOR;
-    case GPU_ZERO:
-      return GL_ZERO;
-    default:
-      BLI_assert(!"Unhandled blend mode");
-      return GL_ZERO;
-  }
-}
-
 void GPU_blend(bool enable)
 {
   if (enable) {
@@ -94,15 +75,9 @@ void GPU_blend_set_func(eGPUBlendFunction sfactor, eGPUBlendFunction dfactor)
   }
 }
 
-void GPU_blend_set_func_separate(eGPUBlendFunction src_rgb,
-                                 eGPUBlendFunction dst_rgb,
-                                 eGPUBlendFunction src_alpha,
-                                 eGPUBlendFunction dst_alpha)
+void GPU_blend_set_func_separate(eGPUBlend blend)
 {
-  glBlendFuncSeparate(gpu_get_gl_blendfunction(src_rgb),
-                      gpu_get_gl_blendfunction(dst_rgb),
-                      gpu_get_gl_blendfunction(src_alpha),
-                      gpu_get_gl_blendfunction(dst_alpha));
+  GLStateStack::set_blend(blend);
 }
 
 void GPU_face_culling(eGPUFaceCullTest culling)
diff --git a/source/blender/windowmanager/intern/wm_playanim.c b/source/blender/windowmanager/intern/wm_playanim.c
index a0a21fadbbb..b75d9db1c38 100644
--- a/source/blender/windowmanager/intern/wm_playanim.c
+++ b/source/blender/windowmanager/intern/wm_playanim.c
@@ -316,8 +316,7 @@ static void playanim_toscreen(
   /* checkerboard for case alpha */
   if (ibuf->planes == 32) {
     GPU_blend(true);
-    GPU_blend_set_func_separate(
-        GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+    GPU_blend_set_func_separate(GPU_BLEND_ALPHA);
 
     imm_draw_box_checker_2d_ex(offs_x,
                                offs_y,