Mesa (radeon-rewrite): r200: enable hw clears
Dave Airlie
airlied at kemper.freedesktop.org
Tue Mar 10 01:00:44 UTC 2009
Module: Mesa
Branch: radeon-rewrite
Commit: 14c3bddbac8f9fc8e432137772f0c4772fdfb7ab
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=14c3bddbac8f9fc8e432137772f0c4772fdfb7ab
Author: Dave Airlie <airlied at redhat.com>
Date: Tue Mar 10 19:03:07 2009 +1000
r200: enable hw clears
---
src/mesa/drivers/dri/r200/r200_context.h | 15 ++
src/mesa/drivers/dri/r200/r200_ioctl.c | 238 +++++++++++++++++++++++++++---
2 files changed, 234 insertions(+), 19 deletions(-)
diff --git a/src/mesa/drivers/dri/r200/r200_context.h b/src/mesa/drivers/dri/r200/r200_context.h
index fcbe725..f7bad2a 100644
--- a/src/mesa/drivers/dri/r200/r200_context.h
+++ b/src/mesa/drivers/dri/r200/r200_context.h
@@ -621,6 +621,21 @@ struct r200_context {
GLboolean texmicrotile;
struct ati_fragment_shader *afs_loaded;
+
+ struct {
+ struct gl_fragment_program *bitmap_fp;
+ struct gl_vertex_program *passthrough_vp;
+
+ struct gl_fragment_program *saved_fp;
+ GLboolean saved_fp_enable;
+ struct gl_vertex_program *saved_vp;
+ GLboolean saved_vp_enable;
+
+ GLint saved_vp_x, saved_vp_y;
+ GLsizei saved_vp_width, saved_vp_height;
+ GLenum saved_matrix_mode;
+ } meta;
+
};
#define R200_CONTEXT(ctx) ((r200ContextPtr)(ctx->DriverCtx))
diff --git a/src/mesa/drivers/dri/r200/r200_ioctl.c b/src/mesa/drivers/dri/r200/r200_ioctl.c
index 1ab5a82..96ed496 100644
--- a/src/mesa/drivers/dri/r200/r200_ioctl.c
+++ b/src/mesa/drivers/dri/r200/r200_ioctl.c
@@ -41,6 +41,20 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include "main/context.h"
#include "swrast/swrast.h"
+#include "main/blend.h"
+#include "main/bufferobj.h"
+#include "main/buffers.h"
+#include "main/depth.h"
+#include "main/shaders.h"
+#include "main/texstate.h"
+#include "main/varray.h"
+#include "glapi/dispatch.h"
+#include "swrast/swrast.h"
+#include "main/stencil.h"
+#include "main/matrix.h"
+#include "main/attrib.h"
+#include "main/enable.h"
+
#include "radeon_common.h"
#include "radeon_lock.h"
#include "r200_context.h"
@@ -56,35 +70,220 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#define R200_TIMEOUT 512
#define R200_IDLE_RETRY 16
-static void r200UserClear(GLcontext *ctx, GLuint flags)
+static void
+r200_meta_set_passthrough_transform(r200ContextPtr r200)
{
- GLuint mask = 0;
+ GLcontext *ctx = r200->radeon.glCtx;
- if (flags & RADEON_FRONT)
- mask |= BUFFER_BIT_FRONT_LEFT;
+ r200->meta.saved_vp_x = ctx->Viewport.X;
+ r200->meta.saved_vp_y = ctx->Viewport.Y;
+ r200->meta.saved_vp_width = ctx->Viewport.Width;
+ r200->meta.saved_vp_height = ctx->Viewport.Height;
+ r200->meta.saved_matrix_mode = ctx->Transform.MatrixMode;
- if (flags & RADEON_BACK)
- mask |= BUFFER_BIT_BACK_LEFT;
+ _mesa_Viewport(0, 0, ctx->DrawBuffer->Width, ctx->DrawBuffer->Height);
- if (flags & RADEON_DEPTH)
- mask |= BUFFER_BIT_DEPTH;
+ _mesa_MatrixMode(GL_PROJECTION);
+ _mesa_PushMatrix();
+ _mesa_LoadIdentity();
+ _mesa_Ortho(0, ctx->DrawBuffer->Width, 0, ctx->DrawBuffer->Height, 1, -1);
- if (flags & RADEON_STENCIL)
- mask |= BUFFER_BIT_STENCIL;
+ _mesa_MatrixMode(GL_MODELVIEW);
+ _mesa_PushMatrix();
+ _mesa_LoadIdentity();
+}
+
+static void
+r200_meta_restore_transform(r200ContextPtr r200)
+{
+ _mesa_MatrixMode(GL_PROJECTION);
+ _mesa_PopMatrix();
+ _mesa_MatrixMode(GL_MODELVIEW);
+ _mesa_PopMatrix();
-#if 1
- _swrast_Clear(ctx, mask);
-#else
- if (flags & (RADEON_FRONT | RADEON_BACK)) {
+ _mesa_MatrixMode(r200->meta.saved_matrix_mode);
+ _mesa_Viewport(r200->meta.saved_vp_x, r200->meta.saved_vp_y,
+ r200->meta.saved_vp_width, r200->meta.saved_vp_height);
+}
+/**
+ * Perform glClear where mask contains only color, depth, and/or stencil.
+ *
+ * The implementation is based on calling into Mesa to set GL state and
+ * performing normal triangle rendering. The intent of this path is to
+ * have as generic a path as possible, so that any driver could make use of
+ * it.
+ */
+static void radeon_clear_tris(GLcontext *ctx, GLbitfield mask)
+{
+ r200ContextPtr rmesa = R200_CONTEXT(ctx);
+ GLfloat vertices[4][3];
+ GLfloat color[4][4];
+ GLfloat dst_z;
+ struct gl_framebuffer *fb = ctx->DrawBuffer;
+ int i;
+ GLboolean saved_fp_enable = GL_FALSE, saved_vp_enable = GL_FALSE;
+ GLboolean saved_shader_program = 0;
+ unsigned int saved_active_texture;
+
+ assert((mask & ~(BUFFER_BIT_BACK_LEFT | BUFFER_BIT_FRONT_LEFT |
+ BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL)) == 0);
+
+ _mesa_PushAttrib(GL_COLOR_BUFFER_BIT |
+ GL_CURRENT_BIT |
+ GL_DEPTH_BUFFER_BIT |
+ GL_ENABLE_BIT |
+ GL_STENCIL_BUFFER_BIT |
+ GL_TRANSFORM_BIT |
+ GL_CURRENT_BIT);
+ _mesa_PushClientAttrib(GL_CLIENT_VERTEX_ARRAY_BIT);
+ saved_active_texture = ctx->Texture.CurrentUnit;
+
+ /* Disable existing GL state we don't want to apply to a clear. */
+ _mesa_Disable(GL_ALPHA_TEST);
+ _mesa_Disable(GL_BLEND);
+ _mesa_Disable(GL_CULL_FACE);
+ _mesa_Disable(GL_FOG);
+ _mesa_Disable(GL_POLYGON_SMOOTH);
+ _mesa_Disable(GL_POLYGON_STIPPLE);
+ _mesa_Disable(GL_POLYGON_OFFSET_FILL);
+ _mesa_Disable(GL_LIGHTING);
+ _mesa_Disable(GL_CLIP_PLANE0);
+ _mesa_Disable(GL_CLIP_PLANE1);
+ _mesa_Disable(GL_CLIP_PLANE2);
+ _mesa_Disable(GL_CLIP_PLANE3);
+ _mesa_Disable(GL_CLIP_PLANE4);
+ _mesa_Disable(GL_CLIP_PLANE5);
+ if (ctx->Extensions.ARB_fragment_program && ctx->FragmentProgram.Enabled) {
+ saved_fp_enable = GL_TRUE;
+ _mesa_Disable(GL_FRAGMENT_PROGRAM_ARB);
+ }
+ if (ctx->Extensions.ARB_vertex_program && ctx->VertexProgram.Enabled) {
+ saved_vp_enable = GL_TRUE;
+ _mesa_Disable(GL_VERTEX_PROGRAM_ARB);
+ }
+ if (ctx->Extensions.ARB_shader_objects && ctx->Shader.CurrentProgram) {
+ saved_shader_program = ctx->Shader.CurrentProgram->Name;
+ _mesa_UseProgramObjectARB(0);
+ }
+
+ if (ctx->Texture._EnabledUnits != 0) {
+ int i;
+
+ for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
+ _mesa_ActiveTextureARB(GL_TEXTURE0 + i);
+ _mesa_Disable(GL_TEXTURE_1D);
+ _mesa_Disable(GL_TEXTURE_2D);
+ _mesa_Disable(GL_TEXTURE_3D);
+ if (ctx->Extensions.ARB_texture_cube_map)
+ _mesa_Disable(GL_TEXTURE_CUBE_MAP_ARB);
+ if (ctx->Extensions.NV_texture_rectangle)
+ _mesa_Disable(GL_TEXTURE_RECTANGLE_NV);
+ if (ctx->Extensions.MESA_texture_array) {
+ _mesa_Disable(GL_TEXTURE_1D_ARRAY_EXT);
+ _mesa_Disable(GL_TEXTURE_2D_ARRAY_EXT);
+ }
+ }
+ }
+
+ r200_meta_set_passthrough_transform(rmesa);
+
+ for (i = 0; i < 4; i++) {
+ color[i][0] = ctx->Color.ClearColor[0];
+ color[i][1] = ctx->Color.ClearColor[1];
+ color[i][2] = ctx->Color.ClearColor[2];
+ color[i][3] = ctx->Color.ClearColor[3];
}
-
- if ((flags & (RADEON_DEPTH | RADEON_STENCIL))
- && (flags & RADEON_CLEAR_FASTZ)) {
+ /* convert clear Z from [0,1] to NDC coord in [-1,1] */
+ dst_z = -1.0 + 2.0 * ctx->Depth.Clear;
+
+ /* Prepare the vertices, which are the same regardless of which buffer we're
+ * drawing to.
+ */
+ vertices[0][0] = fb->_Xmin;
+ vertices[0][1] = fb->_Ymin;
+ vertices[0][2] = dst_z;
+ vertices[1][0] = fb->_Xmax;
+ vertices[1][1] = fb->_Ymin;
+ vertices[1][2] = dst_z;
+ vertices[2][0] = fb->_Xmax;
+ vertices[2][1] = fb->_Ymax;
+ vertices[2][2] = dst_z;
+ vertices[3][0] = fb->_Xmin;
+ vertices[3][1] = fb->_Ymax;
+ vertices[3][2] = dst_z;
+
+ _mesa_ColorPointer(4, GL_FLOAT, 4 * sizeof(GLfloat), &color);
+ _mesa_VertexPointer(3, GL_FLOAT, 3 * sizeof(GLfloat), &vertices);
+ _mesa_Enable(GL_COLOR_ARRAY);
+ _mesa_Enable(GL_VERTEX_ARRAY);
+
+ while (mask != 0) {
+ GLuint this_mask = 0;
+
+ if (mask & BUFFER_BIT_BACK_LEFT)
+ this_mask = BUFFER_BIT_BACK_LEFT;
+ else if (mask & BUFFER_BIT_FRONT_LEFT)
+ this_mask = BUFFER_BIT_FRONT_LEFT;
+
+ /* Clear depth/stencil in the same pass as color. */
+ this_mask |= (mask & (BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL));
+
+ /* Select the current color buffer and use the color write mask if
+ * we have one, otherwise don't write any color channels.
+ */
+ if (this_mask & BUFFER_BIT_FRONT_LEFT)
+ _mesa_DrawBuffer(GL_FRONT_LEFT);
+ else if (this_mask & BUFFER_BIT_BACK_LEFT)
+ _mesa_DrawBuffer(GL_BACK_LEFT);
+ else
+ _mesa_ColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
+
+ /* Control writing of the depth clear value to depth. */
+ if (this_mask & BUFFER_BIT_DEPTH) {
+ _mesa_DepthFunc(GL_ALWAYS);
+ _mesa_Enable(GL_DEPTH_TEST);
+ } else {
+ _mesa_Disable(GL_DEPTH_TEST);
+ _mesa_DepthMask(GL_FALSE);
+ }
+
+ /* Control writing of the stencil clear value to stencil. */
+ if (this_mask & BUFFER_BIT_STENCIL) {
+ _mesa_Enable(GL_STENCIL_TEST);
+ _mesa_StencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE);
+ _mesa_StencilFuncSeparate(GL_FRONT, GL_ALWAYS, ctx->Stencil.Clear,
+ ctx->Stencil.WriteMask[0]);
+ } else {
+ _mesa_Disable(GL_STENCIL_TEST);
+ }
+
+ CALL_DrawArrays(ctx->Exec, (GL_TRIANGLE_FAN, 0, 4));
+
+ mask &= ~this_mask;
}
-#endif
+
+ r200_meta_restore_transform(rmesa);
+
+ _mesa_ActiveTextureARB(GL_TEXTURE0 + saved_active_texture);
+ if (saved_fp_enable)
+ _mesa_Enable(GL_FRAGMENT_PROGRAM_ARB);
+ if (saved_vp_enable)
+ _mesa_Enable(GL_VERTEX_PROGRAM_ARB);
+
+ if (saved_shader_program)
+ _mesa_UseProgramObjectARB(saved_shader_program);
+
+ _mesa_PopClientAttrib();
+ _mesa_PopAttrib();
+}
+
+
+static void r200UserClear(GLcontext *ctx, GLuint mask)
+{
+ radeon_clear_tris(ctx, mask);
}
static void r200KernelClear(GLcontext *ctx, GLuint flags)
@@ -218,6 +417,7 @@ static void r200Clear( GLcontext *ctx, GLbitfield mask )
GLuint flags = 0;
GLuint color_mask = 0;
GLint ret;
+ GLuint orig_mask = mask;
if ( R200_DEBUG & DEBUG_IOCTL ) {
fprintf( stderr, "r200Clear %x %d\n", mask, rmesa->radeon.sarea->pfCurrentPage);
@@ -275,7 +475,7 @@ static void r200Clear( GLcontext *ctx, GLbitfield mask )
}
if (rmesa->radeon.radeonScreen->kernel_mm)
- r200UserClear(ctx, flags);
+ r200UserClear(ctx, orig_mask);
else
r200KernelClear(ctx, flags);
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