From b87406e55f029d29594ae76a4b39a4fe1007fe4f Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Tue, 2 Mar 2010 18:06:24 -0800 Subject: i915: Use x,y drawing offsets instead of changing buffer offsets. This should fix rendering into mipmaps of tiled textures. --- src/mesa/drivers/dri/i915/i915_context.h | 1 + src/mesa/drivers/dri/i915/i915_vtbl.c | 50 ++++++++++++++++++++++++-------- src/mesa/drivers/dri/i915/intel_tris.c | 2 ++ 3 files changed, 41 insertions(+), 12 deletions(-) diff --git a/src/mesa/drivers/dri/i915/i915_context.h b/src/mesa/drivers/dri/i915/i915_context.h index 60b357ec28..b5169280f6 100644 --- a/src/mesa/drivers/dri/i915/i915_context.h +++ b/src/mesa/drivers/dri/i915/i915_context.h @@ -40,6 +40,7 @@ #define I915_FALLBACK_POLYGON_SMOOTH 0x40000 #define I915_FALLBACK_POINT_SMOOTH 0x80000 #define I915_FALLBACK_POINT_SPRITE_COORD_ORIGIN 0x100000 +#define I915_FALLBACK_DRAW_OFFSET 0x200000 #define I915_UPLOAD_CTX 0x1 #define I915_UPLOAD_BUFFERS 0x2 diff --git a/src/mesa/drivers/dri/i915/i915_vtbl.c b/src/mesa/drivers/dri/i915/i915_vtbl.c index 30aaab78c8..0a93e64b1f 100644 --- a/src/mesa/drivers/dri/i915/i915_vtbl.c +++ b/src/mesa/drivers/dri/i915/i915_vtbl.c @@ -378,15 +378,13 @@ i915_emit_state(struct intel_context *intel) OUT_BATCH(state->Buffer[I915_DESTREG_CBUFADDR0]); OUT_BATCH(state->Buffer[I915_DESTREG_CBUFADDR1]); OUT_RELOC(state->draw_region->buffer, - I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, - state->draw_region->draw_offset); + I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 0); if (state->depth_region) { OUT_BATCH(state->Buffer[I915_DESTREG_DBUFADDR0]); OUT_BATCH(state->Buffer[I915_DESTREG_DBUFADDR1]); OUT_RELOC(state->depth_region->buffer, - I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, - state->depth_region->draw_offset); + I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 0); } OUT_BATCH(state->Buffer[I915_DESTREG_DV0]); @@ -534,6 +532,7 @@ i915_set_draw_region(struct intel_context *intel, struct intel_renderbuffer *irb = intel_renderbuffer(rb); GLuint value; struct i915_hw_state *state = &i915->state; + uint32_t draw_x, draw_y; if (state->draw_region != color_regions[0]) { intel_region_release(&state->draw_region); @@ -596,14 +595,41 @@ i915_set_draw_region(struct intel_context *intel, } state->Buffer[I915_DESTREG_DV1] = value; - state->Buffer[I915_DESTREG_DRAWRECT0] = _3DSTATE_DRAWRECT_INFO; - state->Buffer[I915_DESTREG_DRAWRECT1] = 0; - state->Buffer[I915_DESTREG_DRAWRECT2] = 0; /* xmin, ymin */ - state->Buffer[I915_DESTREG_DRAWRECT3] = - (ctx->DrawBuffer->Width & 0xffff) | - (ctx->DrawBuffer->Height << 16); - state->Buffer[I915_DESTREG_DRAWRECT4] = 0; /* xoff, yoff */ - state->Buffer[I915_DESTREG_DRAWRECT5] = 0; + /* We set up the drawing rectangle to be offset into the color + * region's location in the miptree. If it doesn't match with + * depth's offsets, we can't render to it. + * + * (Well, not actually true -- the hw grew a bit to let depth's + * offset get forced to 0,0. We may want to use that if people are + * hitting that case. Also, some configurations may be supportable + * by tweaking the start offset of the buffers around, which we + * can't do in general due to tiling) + */ + FALLBACK(intel, I915_FALLBACK_DRAW_OFFSET, + (depth_region && color_regions[0]) && + (depth_region->draw_x != color_regions[0]->draw_x || + depth_region->draw_y != color_regions[0]->draw_y)); + + if (color_regions[0]) { + draw_x = color_regions[0]->draw_x; + draw_y = color_regions[0]->draw_y; + } else if (depth_region) { + draw_x = depth_region->draw_x; + draw_y = depth_region->draw_y; + } else { + draw_x = 0; + draw_y = 0; + } + + /* When changing drawing rectangle offset, an MI_FLUSH is first required. */ + state->Buffer[I915_DESTREG_DRAWRECT0] = MI_FLUSH; + state->Buffer[I915_DESTREG_DRAWRECT1] = _3DSTATE_DRAWRECT_INFO; + state->Buffer[I915_DESTREG_DRAWRECT2] = 0; + state->Buffer[I915_DESTREG_DRAWRECT3] = (draw_y << 16) | draw_x; + state->Buffer[I915_DESTREG_DRAWRECT4] = + ((ctx->DrawBuffer->Width + draw_x) & 0xffff) | + ((ctx->DrawBuffer->Height + draw_y) << 16); + state->Buffer[I915_DESTREG_DRAWRECT5] = (draw_y << 16) | draw_x; I915_STATECHANGE(i915, I915_UPLOAD_BUFFERS); } diff --git a/src/mesa/drivers/dri/i915/intel_tris.c b/src/mesa/drivers/dri/i915/intel_tris.c index 0afbda2436..e63cd97db6 100644 --- a/src/mesa/drivers/dri/i915/intel_tris.c +++ b/src/mesa/drivers/dri/i915/intel_tris.c @@ -1177,6 +1177,8 @@ static char *fallbackStrings[] = { [17] = "Logic op", [18] = "Smooth polygon", [19] = "Smooth point", + [20] = "point sprite coord origin", + [21] = "depth/color drawing offset", }; -- cgit v1.2.3