From 7b7c0326ac2506b781a729c6c21dbc731157bb4a Mon Sep 17 00:00:00 2001 From: "Sergey Semyonov (Serge)" Date: Fri, 24 Jan 2014 12:10:27 +0000 Subject: [PATCH] GL blitter: use per pixel mask texture as alpha channel source git-svn-id: svn://kolibrios.org@4523 a494cfbc-eb01-0410-851d-a64ba20cac60 --- contrib/sdk/sources/render/blit.c | 4 +- contrib/sdk/sources/render/render.c | 65 +++++++++++++++++++++-------- contrib/sdk/sources/render/render.h | 5 ++- contrib/sdk/sources/render/swap.c | 57 +++++++++++++++++++++---- 4 files changed, 100 insertions(+), 31 deletions(-) diff --git a/contrib/sdk/sources/render/blit.c b/contrib/sdk/sources/render/blit.c index 9e9b9f188..819d3a058 100644 --- a/contrib/sdk/sources/render/blit.c +++ b/contrib/sdk/sources/render/blit.c @@ -15,7 +15,7 @@ void render_blit(struct render *render, enum px_buffer buffer) float dst_xscale, dst_yscale; float *vertices = render->vertices; - float *texcoords = render->texcoords; + float *texcoords = render->tc_src; int r, b; if(render == NULL) @@ -51,7 +51,7 @@ void render_blit(struct render *render, enum px_buffer buffer) GL_TEXTURE_MAG_FILTER, GL_NEAREST); - glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(float),render->texcoords); + glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(float),render->tc_src); glEnableVertexAttribArray(1); dst_xscale = 1.0/render->scr_width; diff --git a/contrib/sdk/sources/render/render.c b/contrib/sdk/sources/render/render.c index 9676095a6..c3272c1c6 100644 --- a/contrib/sdk/sources/render/render.c +++ b/contrib/sdk/sources/render/render.c @@ -89,22 +89,27 @@ struct render* create_render(EGLDisplay dpy, EGLSurface surface, int dx, int dy) const char *vs_src = "attribute vec4 v_position;\n" "attribute vec4 v_texcoord0;\n" + "attribute vec4 v_texcoord1;\n" "varying vec2 source_texture;\n" - "void main()\n" + "varying vec2 mask_texture;\n" + "void main()\n" "{\n" " gl_Position = v_position;\n" " source_texture = v_texcoord0.xy;\n" + " mask_texture = v_texcoord1.xy;\n" "}\n"; const char *fs_src = -// "precision mediump float;\n" "varying vec2 source_texture;\n" - "uniform sampler2D sampler;\n" + "varying vec2 mask_texture;\n" + "uniform sampler2D sampler_src;\n" + "uniform sampler2D sampler_mask;\n" "void main()\n" "{\n" - " vec3 cg = texture2D(sampler, source_texture).rgb;\n" - " gl_FragColor = vec4(cg.r,cg.g,cg.b,1.0);\n" + " float ca = texture2D(sampler_mask, mask_texture).r;\n" + " gl_FragColor = vec4(texture2D(sampler_src, source_texture).rgb, ca);\n" "}\n"; + EGLint config_attribs[14]; EGLConfig config; EGLint num_configs; @@ -310,6 +315,7 @@ struct render* create_render(EGLDisplay dpy, EGLSurface surface, int dx, int dy) glAttachShader(render->blit_prog, fs_shader); glBindAttribLocation(render->blit_prog, 0, "v_position"); glBindAttribLocation(render->blit_prog, 1, "v_texcoord0"); + glBindAttribLocation(render->blit_prog, 2, "v_texcoord1"); glLinkProgram(render->blit_prog); glGetProgramiv(render->blit_prog, GL_LINK_STATUS, &ret); @@ -327,17 +333,34 @@ struct render* create_render(EGLDisplay dpy, EGLSurface surface, int dx, int dy) free(info); } - render->sampler = glGetUniformLocation(render->blit_prog,"sampler"); + render->sampler = glGetUniformLocation(render->blit_prog,"sampler_src"); + render->sm_mask = glGetUniformLocation(render->blit_prog,"sampler_mask"); glUseProgram(render->blit_prog); glUniform1i(render->sampler, 0); + glUniform1i(render->sm_mask, 1); glVertexAttribPointer(0, 2, GL_FLOAT,GL_FALSE, 2 * sizeof(float),render->vertices); glEnableVertexAttribArray(0); - glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(float),render->texcoords); + glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(float),render->tc_src); glEnableVertexAttribArray(1); + glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(float),render->tc_mask); + glEnableVertexAttribArray(2); + + glEnable(GL_BLEND); + glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA); + + glActiveTexture(GL_TEXTURE1); + glBindTexture(GL_TEXTURE_2D, render->tx_mask); + glTexParameteri(GL_TEXTURE_2D, + GL_TEXTURE_MIN_FILTER, + GL_NEAREST); + glTexParameteri(GL_TEXTURE_2D, + GL_TEXTURE_MAG_FILTER, + GL_NEAREST); + eglMakeCurrent(dpy, surface, surface, context); return render; @@ -378,9 +401,9 @@ void create_mask(struct render *render) EGL_GL_TEXTURE_LEVEL_KHR, 0, EGL_NONE }; - struct drm_i915_gem_mmap mmap_arg; + struct drm_i915_gem_mmap_gtt mmap_arg; EGLint handle, stride; - int pitch; + int winw, winh, pitch; void *data; glGenTextures(1, &render->tx_mask); @@ -394,11 +417,16 @@ void create_mask(struct render *render) glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST); glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST); - pitch = (render->width+3) & -4; + winw = render->width+10; + winh = render->height+20+5; - data = user_alloc(pitch*render->height); + pitch = (winw+3) & -4; - glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, render->width, render->height, 0, + data = user_alloc(pitch * winh); + + memset(data, 0x20, pitch * winh); + + glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, winw, winh, 0, GL_RED,GL_UNSIGNED_BYTE, data); user_free(data); @@ -419,18 +447,19 @@ void create_mask(struct render *render) mmap_arg.handle = handle; mmap_arg.offset = 0; - mmap_arg.size = stride * render->height; - if (drm_ioctl(render->fd, DRM_IOCTL_I915_GEM_MMAP, &mmap_arg)) +// mmap_arg.size = stride * winh; + if (drm_ioctl(render->fd, DRM_IOCTL_I915_GEM_MMAP_GTT, &mmap_arg)) { printf("%s: failed to mmap image %p handle=%d, %d bytes, into CPU domain\n", - __FUNCTION__, render->mask, handle, stride*render->height); + __FUNCTION__, render->mask, handle, stride*winh); goto err3; } - render->mask_buffer = (void *)(uintptr_t)mmap_arg.addr_ptr; + render->mask_buffer = (void *)(uintptr_t)mmap_arg.offset; + render->mask_handle = handle; - printf("%s: mmap image %p handle=%d, %d bytes to %p\n", - __FUNCTION__, render->mask, handle, stride*render->height, render->mask_buffer); + printf("%s: mmap image %p handle=%d, stride %d %d bytes to %p\n", + __FUNCTION__, render->mask, handle, stride, stride*winh, render->mask_buffer); return; diff --git a/contrib/sdk/sources/render/render.h b/contrib/sdk/sources/render/render.h index fa47a67d9..5547446aa 100644 --- a/contrib/sdk/sources/render/render.h +++ b/contrib/sdk/sources/render/render.h @@ -27,11 +27,12 @@ struct render GLuint tx_buffers[2]; GLuint tx_screen; GLuint tx_mask; + GLuint mask_handle; void *mask_buffer; int back_buffer; GLuint blit_prog; - GLint sampler; - float vertices[8], texcoords[8]; + GLint sampler, sm_mask; + float vertices[8],tc_src[8],tc_mask[8]; }; struct render* create_render(EGLDisplay dpy, EGLSurface surface, int dx, int dy); diff --git a/contrib/sdk/sources/render/swap.c b/contrib/sdk/sources/render/swap.c index 592480096..f4efcb168 100644 --- a/contrib/sdk/sources/render/swap.c +++ b/contrib/sdk/sources/render/swap.c @@ -3,19 +3,35 @@ #include #include "render.h" +#include #include +static int drm_ioctl(int fd, unsigned long request, void *arg) +{ + ioctl_t io; + + io.handle = fd; + io.io_code = request; + io.input = arg; + io.inp_size = 64; + io.output = NULL; + io.out_size = 0; + + return call_service(&io); +} + void render_swap_and_blit(struct render *render) { char proc_info[1024]; + struct drm_i915_mask_update update; EGLContext context; EGLSurface draw, read; - int winx, winy; + int winx, winy, winw, winh; - float dst_xscale, dst_yscale; + float xscale, yscale; float *vertices = render->vertices; - float *texcoords = render->texcoords; + float *texcoords = render->tc_src; int r, b; if(render == NULL) @@ -25,6 +41,8 @@ void render_swap_and_blit(struct render *render) winx = *(uint32_t*)(proc_info+34); winy = *(uint32_t*)(proc_info+38); + winw = *(uint32_t*)(proc_info+42)+1; + winh = *(uint32_t*)(proc_info+46)+1; context = eglGetCurrentContext(); draw = eglGetCurrentSurface(EGL_DRAW); @@ -50,6 +68,10 @@ void render_swap_and_blit(struct render *render) #endif + update.handle = render->mask_handle; + update.bo_map = (int)render->mask_buffer; + drm_ioctl(render->fd, SRV_MASK_UPDATE, &update); + glActiveTexture(GL_TEXTURE0); glBindTexture(GL_TEXTURE_2D, render->tx_buffers[render->back_buffer]); glTexParameteri(GL_TEXTURE_2D, @@ -59,22 +81,23 @@ void render_swap_and_blit(struct render *render) GL_TEXTURE_MAG_FILTER, GL_NEAREST); - dst_xscale = 1.0/render->scr_width; - dst_yscale = 1.0/render->scr_height; + + xscale = 1.0/render->scr_width; + yscale = 1.0/render->scr_height; r = winx + render->dx + render->width; b = winy + render->dy + render->height; float t0, t1, t2, t5; - vertices[0] = t0 = 2*(winx+render->dx)*dst_xscale - 1.0; - vertices[1 * 2] = t2 = 2*r*dst_xscale - 1.0; + vertices[0] = t0 = 2*(winx+render->dx)*xscale - 1.0; + vertices[1 * 2] = t2 = 2*r*xscale - 1.0; vertices[2 * 2] = t2; vertices[3 * 2] = t0; - vertices[1] = t1 = 2*(winy+render->dy)*dst_yscale - 1.0; - vertices[2*2+1] = t5 = 2*b*dst_yscale - 1.0; + vertices[1] = t1 = 2*(winy+render->dy)*yscale - 1.0; + vertices[2*2+1] = t5 = 2*b*yscale - 1.0; vertices[1*2+1] = t1; vertices[3*2+1] = t5; @@ -87,7 +110,23 @@ void render_swap_and_blit(struct render *render) texcoords[3*2] = 0.0; texcoords[3*2+1]= 1.0; + texcoords = render->tc_mask; + + xscale = 1.0/winw; + yscale = 1.0/winh; + + texcoords[0] = render->dx * xscale; + texcoords[1] = render->dy * yscale; + texcoords[1*2] = (render->dx+render->width)*xscale; + texcoords[1*2+1]= render->dy * yscale; + texcoords[2*2] = (render->dx+render->width)*xscale; + texcoords[2*2+1]= (render->dy+render->height)*yscale; + texcoords[3*2] = render->dx * xscale; + texcoords[3*2+1]= (render->dy+render->height)*yscale; + + glDrawArrays(GL_TRIANGLE_FAN, 0, 4); + glFlush(); // glDisableVertexAttribArray(0); // glDisableVertexAttribArray(1);