[Glamor] [PATCH 1/3] Change the trapezoid render to use VBO.
junyan.he at linux.intel.com
junyan.he at linux.intel.com
Thu Jul 19 14:52:43 PDT 2012
From: Junyan He <junyan.he at linux.intel.com>
Because some uniform variables need to be set for every
trapezoid rendering, we can not use vbo to render multi
trapezoids one time, which have performance big loss.
We now add attributes which contain the same value to bypass
the uniform variable problem. The uniform value for one
trapezoid will be set to the same value to all the vertex
of that trapezoid as an attribute, then in FS, it is still
a constant.
Signed-off-by: Junyan He <junyan.he at linux.intel.com>
---
src/glamor_trapezoid.c | 474 ++++++++++++++++++++++++++++++------------------
src/glamor_utils.h | 29 +++
2 files changed, 330 insertions(+), 173 deletions(-)
diff --git a/src/glamor_trapezoid.c b/src/glamor_trapezoid.c
index 5dd2792..d7bba66 100644
--- a/src/glamor_trapezoid.c
+++ b/src/glamor_trapezoid.c
@@ -38,6 +38,10 @@
#ifdef GLAMOR_TRAPEZOID_SHADER
+#define GLAMOR_VERTEX_TOP_BOTTOM (GLAMOR_VERTEX_SOURCE + 1)
+#define GLAMOR_VERTEX_LEFT_PARAM (GLAMOR_VERTEX_SOURCE + 2)
+#define GLAMOR_VERTEX_RIGHT_PARAM (GLAMOR_VERTEX_SOURCE + 3)
+
#define DEBUG_CLIP_VTX 0
#define POINT_INSIDE_CLIP_RECT(point, rect) \
@@ -112,10 +116,10 @@ point_inside_trapezoid(int point[2], xTrapezoid * trap, xFixed cut_y)
ret = FALSE;
if (DEBUG_CLIP_VTX) {
ErrorF("Out of Trap top, point[1] = %d(0x%x)), "
- "top = %d(0x%x)\n",
- (unsigned int)xFixedToInt(point[1]), point[1],
- (unsigned int)xFixedToInt(trap->top),
- (unsigned int)trap->top);
+ "top = %d(0x%x)\n",
+ (unsigned int)xFixedToInt(point[1]), point[1],
+ (unsigned int)xFixedToInt(trap->top),
+ (unsigned int)trap->top);
}
return ret;
@@ -556,6 +560,99 @@ _glamor_clip_trapezoid_vertex(xTrapezoid * trap, BoxPtr pbox,
return TRUE;
}
+static void
+glamor_setup_composite_vbo_for_trapezoid(ScreenPtr screen, int n_verts)
+{
+ glamor_screen_private *glamor_priv =
+ glamor_get_screen_private(screen);
+ glamor_gl_dispatch *dispatch;
+ int stride;
+ int vert_size;
+
+ glamor_priv->render_nr_verts = 0;
+
+ /* For GLAMOR_VERTEX_POS */
+ glamor_priv->vb_stride = 2 * sizeof(float);
+
+ /* For GLAMOR_GLAMOR_VERTEX_SOURCE */
+ glamor_priv->vb_stride += 2 * sizeof(float);
+
+ /* For GLAMOR_VERTEX_TOP_BOTTOM */
+ glamor_priv->vb_stride += 2 * sizeof(float);
+
+ /* For GLAMOR_VERTEX_LEFT_PARAM */
+ glamor_priv->vb_stride += 4 * sizeof(float);
+
+ /* For GLAMOR_VERTEX_RIGHT_PARAM */
+ glamor_priv->vb_stride += 4 * sizeof(float);
+
+ vert_size = n_verts * glamor_priv->vb_stride;
+
+ dispatch = glamor_get_dispatch(glamor_priv);
+
+ dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
+ dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+ dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_TOP_BOTTOM);
+ dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_LEFT_PARAM);
+ dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_RIGHT_PARAM);
+
+ dispatch->glBindBuffer(GL_ARRAY_BUFFER, glamor_priv->vbo);
+ if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP) {
+ if (glamor_priv->vbo_size < (glamor_priv->vbo_offset + vert_size)) {
+ glamor_priv->vbo_size = GLAMOR_COMPOSITE_VBO_VERT_CNT *
+ glamor_priv->vb_stride;
+ glamor_priv->vbo_offset = 0;
+ dispatch->glBufferData(GL_ARRAY_BUFFER,
+ glamor_priv->vbo_size,
+ NULL, GL_STREAM_DRAW);
+ }
+
+ glamor_priv->vb = dispatch->glMapBufferRange(GL_ARRAY_BUFFER,
+ glamor_priv->vbo_offset,
+ vert_size,
+ GL_MAP_WRITE_BIT | GL_MAP_UNSYNCHRONIZED_BIT);
+
+ assert(glamor_priv->vb != NULL);
+ glamor_priv->vb -= glamor_priv->vbo_offset;
+ } else {
+ glamor_priv->vbo_offset = 0;
+ }
+
+ dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, glamor_priv->ebo);
+
+ /* Set the vertex pointer. */
+ dispatch->glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT,
+ GL_FALSE, glamor_priv->vb_stride,
+ (void *) ((long)glamor_priv->vbo_offset));
+ dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
+ stride = 2;
+
+ dispatch->glVertexAttribPointer(GLAMOR_VERTEX_SOURCE, 2, GL_FLOAT,
+ GL_FALSE, glamor_priv->vb_stride,
+ (void *) ((long)glamor_priv->vbo_offset + stride * sizeof(float)));
+ dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+ stride += 2;
+
+ dispatch->glVertexAttribPointer(GLAMOR_VERTEX_TOP_BOTTOM, 2, GL_FLOAT,
+ GL_FALSE, glamor_priv->vb_stride,
+ (void *) ((long)glamor_priv->vbo_offset + stride * sizeof(float)));
+ dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_TOP_BOTTOM);
+ stride += 2;
+
+ dispatch->glVertexAttribPointer(GLAMOR_VERTEX_LEFT_PARAM, 4, GL_FLOAT,
+ GL_FALSE, glamor_priv->vb_stride,
+ (void *) ((long)glamor_priv->vbo_offset + stride * sizeof(float)));
+ dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_LEFT_PARAM);
+ stride += 4;
+
+ dispatch->glVertexAttribPointer(GLAMOR_VERTEX_RIGHT_PARAM, 4, GL_FLOAT,
+ GL_FALSE, glamor_priv->vb_stride,
+ (void *) ((long)glamor_priv->vbo_offset + stride * sizeof(float)));
+ dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_RIGHT_PARAM);
+
+ glamor_put_dispatch(glamor_priv);
+}
+
static Bool
_glamor_trapezoids_with_shader(CARD8 op,
PicturePtr src, PicturePtr dst,
@@ -565,6 +662,8 @@ _glamor_trapezoids_with_shader(CARD8 op,
ScreenPtr screen = dst->pDrawable->pScreen;
glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
struct shader_key key;
+ glamor_composite_shader *shader = NULL;
+ struct blendinfo op_info;
PictFormatShort saved_source_format = 0;
PixmapPtr source_pixmap = NULL;
PixmapPtr dest_pixmap = NULL;
@@ -707,7 +806,7 @@ _glamor_trapezoids_with_shader(CARD8 op,
goto TRAPEZOID_RESET_GL;
}
glamor_set_destination_pixmap_priv_nc(dest_pixmap_priv);
- glamor_composite_set_shader_blend(dest_pixmap_priv, &key, shader, op_info);
+ glamor_composite_set_shader_blend(dest_pixmap_priv, &key, shader, &op_info);
glamor_priv->has_source_coords = key.source != SHADER_SOURCE_SOLID;
glamor_priv->has_mask_coords = (key.mask != SHADER_MASK_NONE &&
key.mask != SHADER_MASK_SOLID);
@@ -888,13 +987,45 @@ glamor_init_trapezoid_shader(ScreenPtr screen)
const char *trapezoid_vs =
GLAMOR_DEFAULT_PRECISION
"attribute vec4 v_position;\n"
- "attribute vec4 v_texcoord;\n"
+ "attribute vec2 v_texcoord;\n"
+ /* v_top_bottom, v_left_param and v_right_param contain the
+ constant value for all the vertex of one rect. Using uniform
+ is more suitable but we need to reset the uniform variables
+ for every rect rendering and can not use the vbo, which causes
+ performance loss. So we set these attributes to same value
+ for every vertex of one rect and so it is also a constant in FS */
+ "attribute vec2 v_top_bottom;\n"
+ "attribute vec4 v_left_param;\n"
+ "attribute vec4 v_right_param;\n"
+ "\n"
"varying vec2 source_texture;\n"
+ "varying float trap_top;\n"
+ "varying float trap_bottom;\n"
+ "varying float trap_left_x;\n"
+ "varying float trap_left_y;\n"
+ "varying float trap_left_slope;\n"
+ "varying float trap_left_vertical_f;\n"
+ "varying float trap_right_x;\n"
+ "varying float trap_right_y;\n"
+ "varying float trap_right_slope;\n"
+ "varying float trap_right_vertical_f;\n"
"\n"
"void main()\n"
"{\n"
" gl_Position = v_position;\n"
" source_texture = v_texcoord.xy;\n"
+ " trap_top = v_top_bottom.x;\n"
+ " trap_bottom = v_top_bottom.y;\n"
+ " \n"
+ " trap_left_x = v_left_param.x;\n"
+ " trap_left_y = v_left_param.y;\n"
+ " trap_left_slope = v_left_param.z;\n"
+ " trap_left_vertical_f = v_left_param.w;\n"
+ " \n"
+ " trap_right_x = v_right_param.x;\n"
+ " trap_right_y = v_right_param.y;\n"
+ " trap_right_slope = v_right_param.z;\n"
+ " trap_right_vertical_f = v_right_param.w;\n"
"}\n";
/*
@@ -925,18 +1056,20 @@ glamor_init_trapezoid_shader(ScreenPtr screen)
const char *trapezoid_fs =
GLAMOR_DEFAULT_PRECISION
"varying vec2 source_texture; \n"
- "uniform float x_per_pix; \n"
- "uniform float y_per_pix; \n"
- "uniform float trap_top; \n"
- "uniform float trap_bottom; \n"
- "uniform float trap_left_x; \n"
- "uniform float trap_left_y; \n"
- "uniform float trap_left_slope; \n"
- "uniform int trap_left_vertical; \n"
- "uniform float trap_right_x; \n"
- "uniform float trap_right_y; \n"
- "uniform float trap_right_slope; \n"
- "uniform int trap_right_vertical; \n"
+ "varying float trap_top; \n"
+ "varying float trap_bottom; \n"
+ "varying float trap_left_x; \n"
+ "varying float trap_left_y; \n"
+ "varying float trap_left_slope; \n"
+ "varying float trap_left_vertical_f; \n"
+ "varying float trap_right_x; \n"
+ "varying float trap_right_y; \n"
+ "varying float trap_right_slope; \n"
+ "varying float trap_right_vertical_f; \n"
+ "float x_per_pix = 1.0;"
+ "float y_per_pix = 1.0;"
+ "bool trap_left_vertical = (abs(trap_left_vertical_f - 1.0) <= 0.0001);\n"
+ "bool trap_right_vertical = (abs(trap_right_vertical_f - 1.0) <= 0.0001);\n"
"\n"
"float get_alpha_val() \n"
"{ \n"
@@ -945,7 +1078,7 @@ glamor_init_trapezoid_shader(ScreenPtr screen)
" float x_up_cut_right; \n"
" float x_bottom_cut_right; \n"
" \n"
- " if(trap_left_vertical == 1) { \n"
+ " if(trap_left_vertical == true) { \n"
" x_up_cut_left = trap_left_x; \n"
" x_bottom_cut_left = trap_left_x; \n"
" } else { \n"
@@ -957,7 +1090,7 @@ glamor_init_trapezoid_shader(ScreenPtr screen)
" / trap_left_slope; \n"
" } \n"
" \n"
- " if(trap_right_vertical == 1) { \n"
+ " if(trap_right_vertical == true) { \n"
" x_up_cut_right = trap_right_x; \n"
" x_bottom_cut_right = trap_right_x; \n"
" } else { \n"
@@ -1002,12 +1135,12 @@ glamor_init_trapezoid_shader(ScreenPtr screen)
" \n"
" percent = (bottom - up) / y_per_pix; \n"
" \n"
- " if(trap_left_vertical == 1) { \n"
+ " if(trap_left_vertical == true) { \n"
" if(trap_left_x > source_texture.x - x_per_pix/2.0 && \n"
" trap_left_x < source_texture.x + x_per_pix/2.0) \n"
" left = trap_left_x; \n"
" } \n"
- " if(trap_right_vertical == 1) { \n"
+ " if(trap_right_vertical == true) { \n"
" if(trap_right_x > source_texture.x - x_per_pix/2.0 && \n"
" trap_right_x < source_texture.x + x_per_pix/2.0) \n"
" right = trap_right_x; \n"
@@ -1016,10 +1149,10 @@ glamor_init_trapezoid_shader(ScreenPtr screen)
" return 0.0; \n"
" \n"
" percent = percent * ((right - left)/x_per_pix); \n"
- " if(trap_left_vertical == 1 && trap_right_vertical == 1) \n"
+ " if(trap_left_vertical == true && trap_right_vertical == true) \n"
" return percent; \n"
" \n"
- " if(trap_left_vertical != 1) { \n"
+ " if(trap_left_vertical != true) { \n"
" float area; \n"
// the slope should never be 0.0 here
" float up_x = trap_left_x + (up - trap_left_y)/trap_left_slope; \n"
@@ -1090,7 +1223,7 @@ glamor_init_trapezoid_shader(ScreenPtr screen)
" } \n"
" } \n"
" \n"
- " if(trap_right_vertical != 1) { \n"
+ " if(trap_right_vertical != true) { \n"
" float area; \n"
// the slope should never be 0.0 here
" float up_x = trap_right_x + (up - trap_right_y)/trap_right_slope; \n"
@@ -1184,9 +1317,15 @@ glamor_init_trapezoid_shader(ScreenPtr screen)
dispatch->glAttachShader(glamor_priv->trapezoid_prog, fs_prog);
dispatch->glBindAttribLocation(glamor_priv->trapezoid_prog,
- GLAMOR_VERTEX_POS, "v_positionsition");
+ GLAMOR_VERTEX_POS, "v_positionsition");
+ dispatch->glBindAttribLocation(glamor_priv->trapezoid_prog,
+ GLAMOR_VERTEX_SOURCE, "v_texcoord");
+ dispatch->glBindAttribLocation(glamor_priv->trapezoid_prog,
+ GLAMOR_VERTEX_TOP_BOTTOM, "v_top_bottom");
+ dispatch->glBindAttribLocation(glamor_priv->trapezoid_prog,
+ GLAMOR_VERTEX_LEFT_PARAM, "v_left_param");
dispatch->glBindAttribLocation(glamor_priv->trapezoid_prog,
- GLAMOR_VERTEX_SOURCE, "v_texcoord");
+ GLAMOR_VERTEX_RIGHT_PARAM, "v_right_param");
glamor_link_glsl_prog(dispatch, glamor_priv->trapezoid_prog);
@@ -1215,28 +1354,16 @@ _glamor_generate_trapezoid_with_shader(ScreenPtr screen, PicturePtr picture,
glamor_gl_dispatch *dispatch;
glamor_pixmap_private *pixmap_priv;
PixmapPtr pixmap = NULL;
- GLint x_per_pix_uniform_location;
- GLint y_per_pix_uniform_location;
- GLint trap_top_uniform_location;
- GLint trap_bottom_uniform_location;
- GLint trap_left_x_uniform_location;
- GLint trap_left_y_uniform_location;
- GLint trap_left_slope_uniform_location;
- GLint trap_right_x_uniform_location;
- GLint trap_right_y_uniform_location;
- GLint trap_right_slope_uniform_location;
- GLint trap_left_vertical_uniform_location;
- GLint trap_right_vertical_uniform_location;
GLint trapezoid_prog;
float width, height;
- xFixed width_fix, height_fix;
GLfloat xscale, yscale;
float left_slope, right_slope;
xTrapezoid *ptrap;
BoxRec one_trap_bound;
- float vertices[8];
- float tex_vertices[8];
- int i;
+ int nrect_max;
+ int i, j;
+ float *vertices;
+ float params[4];
glamor_priv = glamor_get_screen_private(screen);
trapezoid_prog = glamor_priv->trapezoid_prog;
@@ -1245,7 +1372,7 @@ _glamor_generate_trapezoid_with_shader(ScreenPtr screen, PicturePtr picture,
pixmap_priv = glamor_get_pixmap_private(pixmap);
if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv)
- || pixmap_priv->type == GLAMOR_TEXTURE_LARGE) { /* should always have here. */
+ || pixmap_priv->type == GLAMOR_TEXTURE_LARGE) { /* should always have here. */
DEBUGF("GLAMOR_PIXMAP_PRIV_HAS_FBO check failed, fallback\n");
return FALSE;
}
@@ -1260,155 +1387,153 @@ _glamor_generate_trapezoid_with_shader(ScreenPtr screen, PicturePtr picture,
dispatch = glamor_get_dispatch(glamor_priv);
- /* Bind all the uniform vars .*/
- x_per_pix_uniform_location =
- dispatch->glGetUniformLocation(trapezoid_prog, "x_per_pix");
- y_per_pix_uniform_location =
- dispatch->glGetUniformLocation(trapezoid_prog, "y_per_pix");
- trap_top_uniform_location =
- dispatch->glGetUniformLocation(trapezoid_prog, "trap_top");
- trap_bottom_uniform_location =
- dispatch->glGetUniformLocation(trapezoid_prog, "trap_bottom");
- trap_left_x_uniform_location =
- dispatch->glGetUniformLocation(trapezoid_prog, "trap_left_x");
- trap_left_y_uniform_location =
- dispatch->glGetUniformLocation(trapezoid_prog, "trap_left_y");
- trap_left_slope_uniform_location =
- dispatch->glGetUniformLocation(trapezoid_prog, "trap_left_slope");
- trap_left_vertical_uniform_location =
- dispatch->glGetUniformLocation(trapezoid_prog, "trap_left_vertical");
- trap_right_x_uniform_location =
- dispatch->glGetUniformLocation(trapezoid_prog, "trap_right_x");
- trap_right_y_uniform_location =
- dispatch->glGetUniformLocation(trapezoid_prog, "trap_right_y");
- trap_right_slope_uniform_location =
- dispatch->glGetUniformLocation(trapezoid_prog, "trap_right_slope");
- trap_right_vertical_uniform_location =
- dispatch->glGetUniformLocation(trapezoid_prog, "trap_right_vertical");
-
glamor_set_destination_pixmap_priv_nc(pixmap_priv);
pixmap_priv_get_dest_scale(pixmap_priv, (&xscale), (&yscale));
width = (float)(bounds->x2 - bounds->x1);
height = (float)(bounds->y2 - bounds->y1);
- width_fix = IntToxFixed((bounds->x2 - bounds->x1));
- height_fix = IntToxFixed((bounds->y2 - bounds->y1));
dispatch->glBindBuffer(GL_ARRAY_BUFFER, 0);
dispatch->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
- dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
- dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
-
/* Now draw the Trapezoid mask. */
dispatch->glUseProgram(trapezoid_prog);
- dispatch->glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT,
- GL_FALSE, 0, vertices);
- dispatch->glVertexAttribPointer(GLAMOR_VERTEX_SOURCE, 2, GL_FLOAT,
- GL_FALSE, 0, tex_vertices);
- dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
- dispatch->glEnableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
dispatch->glEnable(GL_BLEND);
dispatch->glBlendFunc(GL_ONE, GL_ONE);
- for (i = 0; i < ntrap; i++) {
- ptrap = traps + i;
-
- DEBUGF("--- The parameter of xTrapezoid is:\ntop: %d 0x%x\tbottom: %d 0x%x\n"
- "left: p1 (%d 0x%x, %d 0x%x)\tp2 (%d 0x%x, %d 0x%x)\n"
- "right: p1 (%d 0x%x, %d 0x%x)\tp2 (%d 0x%x, %d 0x%x)\n",
- xFixedToInt(ptrap->top), ptrap->top,
- xFixedToInt(ptrap->bottom), ptrap->bottom,
- xFixedToInt(ptrap->left.p1.x), ptrap->left.p1.x,
- xFixedToInt(ptrap->left.p1.y), ptrap->left.p1.y,
- xFixedToInt(ptrap->left.p2.x), ptrap->left.p2.x,
- xFixedToInt(ptrap->left.p2.y), ptrap->left.p2.y,
- xFixedToInt(ptrap->right.p1.x), ptrap->right.p1.x,
- xFixedToInt(ptrap->right.p1.y), ptrap->right.p1.y,
- xFixedToInt(ptrap->right.p2.x), ptrap->right.p2.x,
- xFixedToInt(ptrap->right.p2.y), ptrap->right.p2.y);
-
- miTrapezoidBounds(1, ptrap, &one_trap_bound);
- glamor_set_tcoords_tri_strip((pixmap_priv->base.pixmap->drawable.width),
- (pixmap_priv->base.pixmap->drawable.height),
- (one_trap_bound.x1),
- (one_trap_bound.y1),
- (one_trap_bound.x2),
- (one_trap_bound.y2),
- glamor_priv->yInverted, tex_vertices);
-
- /* Need to rebase. */
- one_trap_bound.x1 -= bounds->x1;
- one_trap_bound.x2 -= bounds->x1;
- one_trap_bound.y1 -= bounds->y1;
- one_trap_bound.y2 -= bounds->y1;
- glamor_set_normalize_vcoords_tri_strip(xscale, yscale,
- one_trap_bound.x1, one_trap_bound.y1,
- one_trap_bound.x2, one_trap_bound.y2,
- glamor_priv->yInverted, vertices);
-
- DEBUGF("vertices --> leftup : %f X %f, rightup: %f X %f,"
- "rightbottom: %f X %f, leftbottom : %f X %f\n",
- vertices[0], vertices[1], vertices[2], vertices[3],
- vertices[4], vertices[5], vertices[6], vertices[7]);
- DEBUGF("tex_vertices --> leftup : %f X %f, rightup: %f X %f,"
- "rightbottom: %f X %f, leftbottom : %f X %f\n",
- tex_vertices[0], tex_vertices[1], tex_vertices[2], tex_vertices[3],
- tex_vertices[4], tex_vertices[5], tex_vertices[6], tex_vertices[7]);
-
- if (ptrap->left.p1.x == ptrap->left.p2.x) {
- left_slope = 0.0;
- dispatch->glUniform1i(trap_left_vertical_uniform_location, 1);
- } else {
- left_slope = ((float)(ptrap->left.p1.y - ptrap->left.p2.y))
- / ((float)(ptrap->left.p1.x - ptrap->left.p2.x));
- dispatch->glUniform1i(trap_left_vertical_uniform_location, 0);
+ nrect_max = GLAMOR_COMPOSITE_VBO_VERT_CNT / (4 * GLAMOR_VERTEX_RIGHT_PARAM);
+
+ for (i = 0; i < ntrap;) {
+ int mrect;
+ int stride;
+
+ mrect = (ntrap - i) > nrect_max ? nrect_max : (ntrap - i);
+ glamor_setup_composite_vbo_for_trapezoid(screen, 4 * mrect);
+ stride = glamor_priv->vb_stride / sizeof(float);
+
+ for (j = 0; j < mrect; j++) {
+ ptrap = traps + i + j;
+
+ DEBUGF("--- The parameter of xTrapezoid is:\ntop: %d 0x%x\tbottom: %d 0x%x\n"
+ "left: p1 (%d 0x%x, %d 0x%x)\tp2 (%d 0x%x, %d 0x%x)\n"
+ "right: p1 (%d 0x%x, %d 0x%x)\tp2 (%d 0x%x, %d 0x%x)\n",
+ xFixedToInt(ptrap->top), ptrap->top,
+ xFixedToInt(ptrap->bottom), ptrap->bottom,
+ xFixedToInt(ptrap->left.p1.x), ptrap->left.p1.x,
+ xFixedToInt(ptrap->left.p1.y), ptrap->left.p1.y,
+ xFixedToInt(ptrap->left.p2.x), ptrap->left.p2.x,
+ xFixedToInt(ptrap->left.p2.y), ptrap->left.p2.y,
+ xFixedToInt(ptrap->right.p1.x), ptrap->right.p1.x,
+ xFixedToInt(ptrap->right.p1.y), ptrap->right.p1.y,
+ xFixedToInt(ptrap->right.p2.x), ptrap->right.p2.x,
+ xFixedToInt(ptrap->right.p2.y), ptrap->right.p2.y);
+
+ miTrapezoidBounds(1, ptrap, &one_trap_bound);
+
+ vertices = (float*)(glamor_priv->vb + glamor_priv->vbo_offset) + 2;
+ glamor_set_tcoords_ext((pixmap_priv->base.pixmap->drawable.width),
+ (pixmap_priv->base.pixmap->drawable.height),
+ (one_trap_bound.x1),
+ (one_trap_bound.y1),
+ (one_trap_bound.x2),
+ (one_trap_bound.y2),
+ glamor_priv->yInverted, vertices, stride);
+ DEBUGF("tex_vertices --> leftup : %f X %f, rightup: %f X %f,"
+ "rightbottom: %f X %f, leftbottom : %f X %f\n",
+ vertices[0], vertices[1],
+ vertices[1*stride], vertices[1*stride + 1],
+ vertices[2*stride], vertices[2*stride + 1],
+ vertices[3*stride], vertices[3*stride + 1]);
+
+ /* Need to rebase. */
+ one_trap_bound.x1 -= bounds->x1;
+ one_trap_bound.x2 -= bounds->x1;
+ one_trap_bound.y1 -= bounds->y1;
+ one_trap_bound.y2 -= bounds->y1;
+
+ vertices -= 2;
+
+ glamor_set_normalize_vcoords_ext(pixmap_priv, xscale, yscale,
+ one_trap_bound.x1, one_trap_bound.y1,
+ one_trap_bound.x2, one_trap_bound.y2,
+ glamor_priv->yInverted, vertices, stride);
+ DEBUGF("vertices --> leftup : %f X %f, rightup: %f X %f,"
+ "rightbottom: %f X %f, leftbottom : %f X %f\n",
+ vertices[0], vertices[1],
+ vertices[1*stride], vertices[1*stride + 1],
+ vertices[2*stride], vertices[2*stride + 1],
+ vertices[3*stride], vertices[3*stride + 1]);
+ vertices += 4;
+
+ /* Set the top and bottom. */
+ params[0] = ((float)ptrap->top) / 65536;
+ params[1] = ((float)ptrap->bottom) / 65536;
+ glamor_set_const_ext(params, 2, vertices, 4, stride);
+ vertices += 2;
+
+ /* Set the left params. */
+ params[0] = ((float)ptrap->left.p1.x) / 65536;
+ params[1] = ((float)ptrap->left.p1.y) / 65536;
+
+ if (ptrap->left.p1.x == ptrap->left.p2.x) {
+ left_slope = 0.0;
+ params[3] = 1.0;
+ } else {
+ left_slope = ((float)(ptrap->left.p1.y - ptrap->left.p2.y))
+ / ((float)(ptrap->left.p1.x - ptrap->left.p2.x));
+ params[3] = 0.0;
+ }
+ params[2] = left_slope;
+ glamor_set_const_ext(params, 4, vertices, 4, stride);
+ vertices += 4;
+
+ /* Set the left params. */
+ params[0] = ((float)ptrap->right.p1.x) / 65536;
+ params[1] = ((float)ptrap->right.p1.y) / 65536;
+
+ if (ptrap->right.p1.x == ptrap->right.p2.x) {
+ right_slope = 0.0;
+ params[3] = 1.0;
+ } else {
+ right_slope = ((float)(ptrap->right.p1.y - ptrap->right.p2.y))
+ / ((float)(ptrap->right.p1.x - ptrap->right.p2.x));
+ params[3] = 0.0;
+ }
+ params[2] = right_slope;
+ glamor_set_const_ext(params, 4, vertices, 4, stride);
+
+ DEBUGF("trap_top = %f, trap_bottom = %f, "
+ "trap_left_x = %f, trap_left_y = %f, left_slope = %f, "
+ "trap_right_x = %f, trap_right_y = %f, right_slope = %f\n",
+ ((float)ptrap->top) / 65536, ((float)ptrap->bottom) / 65536,
+ ((float)ptrap->left.p1.x) / 65536, ((float)ptrap->left.p1.y) / 65536,
+ left_slope,
+ ((float)ptrap->right.p1.x) / 65536, ((float)ptrap->right.p1.y) / 65536,
+ right_slope);
+
+ glamor_priv->render_nr_verts += 4;
+ glamor_priv->vbo_offset += glamor_priv->vb_stride * 4;
}
- dispatch->glUniform1f(trap_left_slope_uniform_location, left_slope);
- if (ptrap->right.p1.x == ptrap->right.p2.x) {
- right_slope = 0.0;
- dispatch->glUniform1i(trap_right_vertical_uniform_location, 1);
- } else {
- right_slope = ((float)(ptrap->right.p1.y - ptrap->right.p2.y))
- / ((float)(ptrap->right.p1.x - ptrap->right.p2.x));
- dispatch->glUniform1i(trap_right_vertical_uniform_location, 0);
- }
- dispatch->glUniform1f(trap_right_slope_uniform_location, right_slope);
-
- dispatch->glUniform1f(x_per_pix_uniform_location,
- ((float)width_fix) / (65536 * width));
- dispatch->glUniform1f(y_per_pix_uniform_location,
- ((float)height_fix) / (65536 * height));
-
- dispatch->glUniform1f(trap_top_uniform_location,
- ((float)ptrap->top) / 65536);
- dispatch->glUniform1f(trap_bottom_uniform_location,
- ((float)ptrap->bottom) / 65536);
-
- dispatch->glUniform1f(trap_left_x_uniform_location,
- ((float)ptrap->left.p1.x) / 65536);
- dispatch->glUniform1f(trap_left_y_uniform_location,
- ((float)ptrap->left.p1.y) / 65536);
- dispatch->glUniform1f(trap_right_x_uniform_location,
- ((float)ptrap->right.p1.x) / 65536);
- dispatch->glUniform1f(trap_right_y_uniform_location,
- ((float)ptrap->right.p1.y) / 65536);
-
- DEBUGF("x_per_pix = %f, y_per_pix = %f, trap_top = %f, trap_bottom = %f, "
- "trap_left_x = %f, trap_left_y = %f, left_slope = %f, "
- "trap_right_x = %f, trap_right_y = %f, right_slope = %f\n",
- ((float)width_fix) / (65536*width), ((float)height_fix) / (65536*height),
- ((float)ptrap->top) / 65536, ((float)ptrap->bottom) / 65536,
- ((float)ptrap->left.p1.x) / 65536, ((float)ptrap->left.p1.y) / 65536,
- left_slope,
- ((float)ptrap->right.p1.x) / 65536, ((float)ptrap->right.p1.y) / 65536,
- right_slope);
+ i += mrect;
/* Now rendering. */
- dispatch->glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+ if (!glamor_priv->render_nr_verts)
+ continue;
+
+ if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP)
+ dispatch->glUnmapBuffer(GL_ARRAY_BUFFER);
+ else {
+ dispatch->glBindBuffer(GL_ARRAY_BUFFER, glamor_priv->vbo);
+ dispatch->glBufferData(GL_ARRAY_BUFFER,
+ glamor_priv->vbo_offset,
+ glamor_priv->vb, GL_DYNAMIC_DRAW);
+ }
+
+ dispatch->glDrawElements(GL_TRIANGLES, (glamor_priv->render_nr_verts * 3) / 2,
+ GL_UNSIGNED_SHORT, NULL);
}
dispatch->glBindBuffer(GL_ARRAY_BUFFER, 0);
@@ -1417,6 +1542,9 @@ _glamor_generate_trapezoid_with_shader(ScreenPtr screen, PicturePtr picture,
dispatch->glDisable(GL_BLEND);
dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
+ dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_TOP_BOTTOM);
+ dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_LEFT_PARAM);
+ dispatch->glDisableVertexAttribArray(GLAMOR_VERTEX_RIGHT_PARAM);
dispatch->glUseProgram(0);
glamor_put_dispatch(glamor_priv);
return TRUE;
diff --git a/src/glamor_utils.h b/src/glamor_utils.h
index eb2e202..6eef722 100644
--- a/src/glamor_utils.h
+++ b/src/glamor_utils.h
@@ -629,6 +629,25 @@
(vertices)[7] = (vertices)[5]; \
} while(0)
+#define glamor_set_tcoords_ext(width, height, x1, y1, x2, y2, \
+ yInverted, vertices, stride) \
+ do { \
+ (vertices)[0] = (x1); \
+ (vertices)[1*stride] = (x2); \
+ (vertices)[2*stride] = (vertices)[1*stride]; \
+ (vertices)[3*stride] = (vertices)[0]; \
+ if (likely(yInverted)) { \
+ (vertices)[1] = (y1); \
+ (vertices)[2*stride + 1] = (y2); \
+ } \
+ else { \
+ (vertices)[1] = height - (y2); \
+ (vertices)[2*stride + 1] = height - (y1); \
+ } \
+ (vertices)[1*stride + 1] = (vertices)[1]; \
+ (vertices)[3*stride + 1] = (vertices)[2*stride + 1]; \
+ } while(0)
+
#define glamor_set_normalize_one_vcoord(xscale, yscale, x, y, \
yInverted, vertices) \
do { \
@@ -713,6 +732,16 @@
yInverted, vertices, 2); \
} while(0)
+#define glamor_set_const_ext(params, nparam, vertices, nverts, stride) \
+ do { \
+ int i = 0, j = 0; \
+ for(; i < nverts; i++) { \
+ for(j = 0; j < nparam; j++) { \
+ vertices[stride*i + j] = params[j]; \
+ } \
+ } \
+ } while(0)
+
#define glamor_set_normalize_vcoords_tri_strip(xscale, yscale, \
x1, y1, x2, y2, \
yInverted, vertices) \
--
1.7.7.6
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