]> git.sesse.net Git - vlc/blobdiff - modules/video_output/opengl.c
skins2: fix documentation error
[vlc] / modules / video_output / opengl.c
index 2dc1e9c5bc10319bf30769fc0ed73e310dc2e28c..735c591e428b85ded60c7eb5a86e5f7b59ae1813 100644 (file)
@@ -105,6 +105,9 @@ typedef struct {
     float    left;
     float    bottom;
     float    right;
+
+    float    tex_width;
+    float    tex_height;
 } gl_region_t;
 
 struct vout_display_opengl_t {
@@ -173,6 +176,9 @@ struct vout_display_opengl_t {
 
     /* Non-power-of-2 texture size support */
     bool supports_npot;
+
+    uint8_t *texture_temp_buf;
+    int      texture_temp_buf_size;
 };
 
 static inline int GetAlignedSize(unsigned size)
@@ -459,6 +465,7 @@ vout_display_opengl_t *vout_display_opengl_New(video_format_t *fmt,
     vgl->tex_type     = GL_UNSIGNED_BYTE;
     /* Use YUV if possible and needed */
     bool need_fs_yuv = false;
+    bool need_fs_rgba = USE_OPENGL_ES == 2;
     float yuv_range_correction = 1.0;
 
     if (max_texture_units >= 3 && supports_shaders && vlc_fourcc_IsYUV(fmt->i_chroma)) {
@@ -514,7 +521,7 @@ vout_display_opengl_t *vout_display_opengl_New(video_format_t *fmt,
     vgl->shader[1] =
     vgl->shader[2] = -1;
     vgl->local_count = 0;
-    if (supports_shaders && need_fs_yuv) {
+    if (supports_shaders && (need_fs_yuv || need_fs_rgba)) {
 #ifdef SUPPORTS_SHADERS
         BuildYUVFragmentShader(vgl, &vgl->shader[0], &vgl->local_count,
                                vgl->local_value, fmt, yuv_range_correction);
@@ -566,6 +573,8 @@ vout_display_opengl_t *vout_display_opengl_New(video_format_t *fmt,
                 return NULL;
             }
         }
+#else
+        (void)yuv_range_correction;
 #endif
     }
 
@@ -618,6 +627,7 @@ void vout_display_opengl_Delete(vout_display_opengl_t *vgl)
         }
 #endif
 
+        free(vgl->texture_temp_buf);
         vlc_gl_Unlock(vgl->gl);
     }
     if (vgl->pool)
@@ -692,6 +702,71 @@ error:
     return NULL;
 }
 
+#define ALIGN(x, y) (((x) + ((y) - 1)) & ~((y) - 1))
+static void Upload(vout_display_opengl_t *vgl, int in_width, int in_height,
+                   int in_full_width, int in_full_height,
+                   int w_num, int w_den, int h_num, int h_den,
+                   int pitch, int pixel_pitch,
+                   int full_upload, const uint8_t *pixels,
+                   int tex_target, int tex_format, int tex_type)
+{
+    int width       =       in_width * w_num / w_den;
+    int full_width  =  in_full_width * w_num / w_den;
+    int height      =      in_height * h_num / h_den;
+    int full_height = in_full_height * h_num / h_den;
+    // This unpack alignment is the default, but setting it just in case.
+    glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
+#ifndef GL_UNPACK_ROW_LENGTH
+    int dst_width = full_upload ? full_width : width;
+    int dst_pitch = ALIGN(dst_width * pixel_pitch, 4);
+    if ( pitch != dst_pitch )
+    {
+        int buf_size = dst_pitch * full_height * pixel_pitch;
+        const uint8_t *source = pixels;
+        uint8_t *destination;
+        if( !vgl->texture_temp_buf || vgl->texture_temp_buf_size < buf_size )
+        {
+            free( vgl->texture_temp_buf );
+            vgl->texture_temp_buf = xmalloc( buf_size );
+            vgl->texture_temp_buf_size = buf_size;
+        }
+        destination = vgl->texture_temp_buf;
+
+        for( int h = 0; h < height ; h++ )
+        {
+            memcpy( destination, source, width * pixel_pitch );
+            source += pitch;
+            destination += dst_pitch;
+        }
+        if (full_upload)
+            glTexImage2D( tex_target, 0, tex_format,
+                          full_width, full_height,
+                          0, tex_format, tex_type, vgl->texture_temp_buf );
+        else
+            glTexSubImage2D( tex_target, 0,
+                             0, 0,
+                             width, height,
+                             tex_format, tex_type, vgl->texture_temp_buf );
+    } else {
+#else
+    (void) width;
+    (void) height;
+    (void) vgl;
+    {
+        glPixelStorei(GL_UNPACK_ROW_LENGTH, pitch / pixel_pitch);
+#endif
+        if (full_upload)
+            glTexImage2D(tex_target, 0, tex_format,
+                         full_width, full_height,
+                         0, tex_format, tex_type, pixels);
+        else
+            glTexSubImage2D(tex_target, 0,
+                            0, 0,
+                            width, height,
+                            tex_format, tex_type, pixels);
+    }
+}
+
 int vout_display_opengl_Prepare(vout_display_opengl_t *vgl,
                                 picture_t *picture, subpicture_t *subpicture)
 {
@@ -706,38 +781,10 @@ int vout_display_opengl_Prepare(vout_display_opengl_t *vgl,
         }
         glBindTexture(vgl->tex_target, vgl->texture[0][j]);
 
-#ifndef GL_UNPACK_ROW_LENGTH
-        if ( (picture->p[j].i_pitch / picture->p[j].i_pixel_pitch) != (unsigned int)
-             ( picture->format.i_visible_width * vgl->chroma->p[j].w.num / vgl->chroma->p[j].w.den ) )
-        {
-            uint8_t *new_plane = malloc( picture->format.i_visible_width * vgl->fmt.i_visible_height * vgl->chroma->p[j].w.num * vgl->chroma->p[j].h.num / (vgl->chroma->p[j].h.den * vgl->chroma->p[j].w.den ) );
-            uint8_t *destination = new_plane;
-            const uint8_t *source = picture->p[j].p_pixels;
-
-            for( unsigned height = 0; height < (vgl->fmt.i_visible_height * vgl->chroma->p[j].h.num / vgl->chroma->p[j].h.den) ; height++ )
-            {
-                memcpy( destination, source, picture->format.i_visible_width * vgl->chroma->p[j].w.num / vgl->chroma->p[j].w.den );
-                source += picture->p[j].i_pitch / picture->p[j].i_pixel_pitch;
-                destination += picture->format.i_visible_width * vgl->chroma->p[j].w.num / vgl->chroma->p[j].w.den;
-            }
-            glTexSubImage2D( vgl->tex_target, 0,
-                             0, 0,
-                             picture->format.i_visible_width * vgl->chroma->p[j].w.num / vgl->chroma->p[j].w.den,
-                             vgl->fmt.i_height * vgl->chroma->p[j].h.num / vgl->chroma->p[j].h.den,
-                             vgl->tex_format, vgl->tex_type, new_plane );
-            free( new_plane );
-        } else {
-#else
-            glPixelStorei(GL_UNPACK_ROW_LENGTH, picture->p[j].i_pitch / picture->p[j].i_pixel_pitch);
-#endif
-            glTexSubImage2D(vgl->tex_target, 0,
-                            0, 0,
-                            vgl->fmt.i_width  * vgl->chroma->p[j].w.num / vgl->chroma->p[j].w.den,
-                            vgl->fmt.i_height * vgl->chroma->p[j].h.num / vgl->chroma->p[j].h.den,
-                            vgl->tex_format, vgl->tex_type, picture->p[j].p_pixels);
-#ifndef GL_UNPACK_ROW_LENGTH
-        }
-#endif
+        Upload(vgl, picture->format.i_visible_width, vgl->fmt.i_visible_height,
+               vgl->fmt.i_width, vgl->fmt.i_height,
+               vgl->chroma->p[j].w.num, vgl->chroma->p[j].w.den, vgl->chroma->p[j].h.num, vgl->chroma->p[j].h.den,
+               picture->p[j].i_pitch, picture->p[j].i_pixel_pitch, 0, picture->p[j].p_pixels, vgl->tex_target, vgl->tex_format, vgl->tex_type);
     }
 
     int         last_count = vgl->region_count;
@@ -770,6 +817,11 @@ int vout_display_opengl_Prepare(vout_display_opengl_t *vgl,
             if (!vgl->supports_npot) {
                 glr->width  = GetAlignedSize(glr->width);
                 glr->height = GetAlignedSize(glr->height);
+                glr->tex_width  = (float) r->fmt.i_visible_width  / glr->width;
+                glr->tex_height = (float) r->fmt.i_visible_height / glr->height;
+            } else {
+                glr->tex_width  = 1.0;
+                glr->tex_height = 1.0;
             }
             glr->alpha  = (float)subpicture->i_alpha * r->i_alpha / 255 / 255;
             glr->left   =  2.0 * (r->i_x                          ) / subpicture->i_original_picture_width  - 1.0;
@@ -794,13 +846,9 @@ int vout_display_opengl_Prepare(vout_display_opengl_t *vgl,
                                       r->fmt.i_x_offset * r->p_picture->p->i_pixel_pitch;
             if (glr->texture) {
                 glBindTexture(GL_TEXTURE_2D, glr->texture);
-                /* TODO set GL_UNPACK_ALIGNMENT */
-#ifdef GL_UNPACK_ROW_LENGTH
-                glPixelStorei(GL_UNPACK_ROW_LENGTH, r->p_picture->p->i_pitch / r->p_picture->p->i_pixel_pitch);
-#endif
-                glTexSubImage2D(GL_TEXTURE_2D, 0,
-                                0, 0, glr->width, glr->height,
-                                glr->format, glr->type, &r->p_picture->p->p_pixels[pixels_offset]);
+                Upload(vgl, r->fmt.i_visible_width, r->fmt.i_visible_height, glr->width, glr->height, 1, 1, 1, 1,
+                       r->p_picture->p->i_pitch, r->p_picture->p->i_pixel_pitch, 0,
+                       &r->p_picture->p->p_pixels[pixels_offset], GL_TEXTURE_2D, glr->format, glr->type);
             } else {
                 glGenTextures(1, &glr->texture);
                 glBindTexture(GL_TEXTURE_2D, glr->texture);
@@ -812,13 +860,9 @@ int vout_display_opengl_Prepare(vout_display_opengl_t *vgl,
                 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
                 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
                 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
-                /* TODO set GL_UNPACK_ALIGNMENT */
-#ifdef GL_UNPACK_ROW_LENGTH
-                glPixelStorei(GL_UNPACK_ROW_LENGTH, r->p_picture->p->i_pitch / r->p_picture->p->i_pixel_pitch);
-#endif
-                glTexImage2D(GL_TEXTURE_2D, 0, glr->format,
-                             glr->width, glr->height, 0, glr->format, glr->type,
-                             &r->p_picture->p->p_pixels[pixels_offset]);
+                Upload(vgl, r->fmt.i_visible_width, r->fmt.i_visible_height, glr->width, glr->height, 1, 1, 1, 1,
+                       r->p_picture->p->i_pitch, r->p_picture->p->i_pixel_pitch, 1,
+                       &r->p_picture->p->p_pixels[pixels_offset], GL_TEXTURE_2D, glr->format, glr->type);
             }
         }
     }
@@ -851,6 +895,7 @@ static void DrawWithoutShaders(vout_display_opengl_t *vgl,
         right[0], top[0]
     };
 
+    glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
     glEnable(vgl->tex_target);
     glActiveTexture(GL_TEXTURE0 + 0);
     glClientActiveTexture(GL_TEXTURE0 + 0);
@@ -873,13 +918,19 @@ static void DrawWithoutShaders(vout_display_opengl_t *vgl,
 
 #ifdef SUPPORTS_SHADERS
 static void DrawWithShaders(vout_display_opengl_t *vgl,
-                            float *left, float *top, float *right, float *bottom)
+                            float *left, float *top, float *right, float *bottom,
+                            int program)
 {
-    vgl->UseProgram(vgl->program[0]);
-    vgl->Uniform4fv(vgl->GetUniformLocation(vgl->program[0], "Coefficient"), 4, vgl->local_value);
-    vgl->Uniform1i(vgl->GetUniformLocation(vgl->program[0], "Texture0"), 0);
-    vgl->Uniform1i(vgl->GetUniformLocation(vgl->program[0], "Texture1"), 1);
-    vgl->Uniform1i(vgl->GetUniformLocation(vgl->program[0], "Texture2"), 2);
+    vgl->UseProgram(vgl->program[program]);
+    if (program == 0) {
+        vgl->Uniform4fv(vgl->GetUniformLocation(vgl->program[0], "Coefficient"), 4, vgl->local_value);
+        vgl->Uniform1i(vgl->GetUniformLocation(vgl->program[0], "Texture0"), 0);
+        vgl->Uniform1i(vgl->GetUniformLocation(vgl->program[0], "Texture1"), 1);
+        vgl->Uniform1i(vgl->GetUniformLocation(vgl->program[0], "Texture2"), 2);
+    } else {
+        vgl->Uniform1i(vgl->GetUniformLocation(vgl->program[1], "Texture0"), 0);
+        vgl->Uniform4f(vgl->GetUniformLocation(vgl->program[1], "FillColor"), 1.0f, 1.0f, 1.0f, 1.0f);
+    }
 
     static const GLfloat vertexCoord[] = {
         -1.0,  1.0,
@@ -897,18 +948,17 @@ static void DrawWithShaders(vout_display_opengl_t *vgl,
         };
         glActiveTexture(GL_TEXTURE0+j);
         glClientActiveTexture(GL_TEXTURE0+j);
-        glEnable(vgl->tex_target);
         glBindTexture(vgl->tex_target, vgl->texture[0][j]);
 
         char attribute[20];
         snprintf(attribute, sizeof(attribute), "MultiTexCoord%1d", j);
-        vgl->EnableVertexAttribArray(vgl->GetAttribLocation(vgl->program[0], attribute));
-        vgl->VertexAttribPointer(vgl->GetAttribLocation(vgl->program[0], attribute), 2, GL_FLOAT, 0, 0, textureCoord);
+        vgl->EnableVertexAttribArray(vgl->GetAttribLocation(vgl->program[program], attribute));
+        vgl->VertexAttribPointer(vgl->GetAttribLocation(vgl->program[program], attribute), 2, GL_FLOAT, 0, 0, textureCoord);
     }
     glActiveTexture(GL_TEXTURE0 + 0);
     glClientActiveTexture(GL_TEXTURE0 + 0);
-    vgl->EnableVertexAttribArray(vgl->GetAttribLocation(vgl->program[0], "VertexPosition"));
-    vgl->VertexAttribPointer(vgl->GetAttribLocation(vgl->program[0], "VertexPosition"), 2, GL_FLOAT, 0, 0, vertexCoord);
+    vgl->EnableVertexAttribArray(vgl->GetAttribLocation(vgl->program[program], "VertexPosition"));
+    vgl->VertexAttribPointer(vgl->GetAttribLocation(vgl->program[program], "VertexPosition"), 2, GL_FLOAT, 0, 0, vertexCoord);
 
     glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 }
@@ -950,8 +1000,10 @@ int vout_display_opengl_Display(vout_display_opengl_t *vgl,
     }
 
 #ifdef SUPPORTS_SHADERS
-    if (vgl->program[0])
-        DrawWithShaders(vgl, left, top ,right, bottom);
+    if (vgl->program[0] && vgl->chroma->plane_count == 3)
+        DrawWithShaders(vgl, left, top, right, bottom, 0);
+    else if (vgl->program[1] && vgl->chroma->plane_count == 1)
+        DrawWithShaders(vgl, left, top, right, bottom, 1);
     else
 #endif
     {
@@ -969,7 +1021,9 @@ int vout_display_opengl_Display(vout_display_opengl_t *vgl,
 #endif
     }
 
+#ifdef SUPPORTS_FIXED_PIPELINE
     glEnable(GL_TEXTURE_2D);
+#endif
     glEnable(GL_BLEND);
     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 
@@ -983,11 +1037,11 @@ int vout_display_opengl_Display(vout_display_opengl_t *vgl,
             glr->right, glr->top,
             glr->right, glr->bottom,
         };
-        static const GLfloat textureCoord[] = {
+        const GLfloat textureCoord[] = {
             0.0, 0.0,
-            0.0, 1.0,
-            1.0, 0.0,
-            1.0, 1.0,
+            0.0, glr->tex_height,
+            glr->tex_width, 0.0,
+            glr->tex_width, glr->tex_height,
         };
 
         glBindTexture(GL_TEXTURE_2D, glr->texture);
@@ -1019,7 +1073,9 @@ int vout_display_opengl_Display(vout_display_opengl_t *vgl,
         }
     }
     glDisable(GL_BLEND);
+#ifdef SUPPORTS_FIXED_PIPELINE
     glDisable(GL_TEXTURE_2D);
+#endif
 
     /* Display */
     vlc_gl_Swap(vgl->gl);